Answer:
C. lack the enzymes to reduce N2 and NO3- to NH4+
Explanation:
Nitrogen fixation is a process by which atmospheric nitrogen (N2) is converted into ammonia (NH3) so that can be used in metabolic pathways (e.g. biosynthesis of macromolecules). Nitrogen fixation is performed by Archea and bacteria such as Azotobacter (usually in symbiosis with Leguminosa plants).
Nitrogen assimilation is a process in which organic compounds are made from inorganic nitrogen.
The length of time required for half of the radioactive atoms in a sample to decay is its
Answer:
HALF LIFE.
Explanation:
The half life of a radioactive element refers to the length of time that is required for the half of the atoms of a particular sample of radioactive element to decay. For instance a radioactive element that a mass of 120 g and a half life of 2 years will be reduce to 60 g in two years. Half life is usually used to measure the rate of disintegration of an unstable isotope. The principle of half life of radioactive elements can be used to determine the relative ages of rocks.
Approximately how many kg of carnivore biomass can be supported by a field plot containing 1,000 kg of plant material?
A) 10,000
B) 1,000
C) 100
D) 10
E) 1
1,000 i think I’m not sure
1.) When the Greenhouse Effect is exaggerated through human activities more and more heat will be trapped on the Earth, increasing the average temperature. What is this called?
A.) Global cooling
B.) Global Warming
C.) Photosynthesis
D.) CO2 Emissions
2.) What is the largest source of U.S. greenhouse gas emissions?
A.) Agriculture
B.) Transportation
C.) Electricity production
D.) Home heating
3.) What is an example of the greenhouse effect?
A.) Steam rising from boiling water
B.) Baking brownies on a metal pan.
C.) Stepping on hot pavement and it burning your feet.
D.) Inside of a car becoming hot on a warm day.
4.) What are the two most major gases produced by people?
A.) Methane and Fluorine
B.) Carbon Dioxide and Methane
C.) Carbon Dioxide and Nitrous Oxide
D.) Methane and Nitrous Oxide
1 - B
2 - Also B
3 - D
4 - B again
Anything else i can help with Dean?
1. Global warming
2. Transportation
3. Inside of a car becoming hot on a warm day.
4.Carbon Dioxide and Methane
What is greenhouse effect?The greenhouse effect is a natural mechanism that causes the surface of the Earth to warm. Some of the Sun's energy is reflected back to space, while the rest is absorbed and re-radiated by greenhouse gases as it enters the Earth's atmosphere.Emissions of carbon dioxide. The principal greenhouse gas emitted by human activity is carbon dioxide (CO2). Carbon dioxide is released into the atmosphere as a result of the combustion of fossil fuels (coal, natural gas, and oil), solid waste, trees, and other biological materials, as well as chemical processes.Coal, natural gas, and oil production and transportation all generate methane. Livestock and other agricultural techniques, land use, and the breakdown of organic material in municipal solid waste landfills all contribute to methane emissions.learn more about greenhouse effect here:
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Dan is on his high school swim team. Which muscle is the primary mover that allows him to perform a swimming stroke?
A.
Pectoralis major
B.
Infraspinatus
C.
Latissimus dorsi
D.
Supraspinatus
Answer:
it will be A
Explanation:
Answer:
A Pectoralis major
What percentage of water on earth is freshwater?
2.5%
It is a very small percentage.
The most efficient control of eukaryotic gene expression is achieved at the level ofA) replication.B) transcription initiation.C) post-transcription.D) translation initiation.E) post-translation.
B) transcription initiation
Please help!!
Create three relevant questions that you would like answered or clarified about the role of
DNA and chromosomes. Focus on the following areas as you generate questions:
i. The cause and effect relationship between the genetic code and gene expression
ii. Mechanisms of gene regulation
iii. The role of DNA segments that do not code for proteins
Answer:
1) How is DNA compacted to form a chromosome?
2) How to cells undergo differentiation to form the numerous types of cells in the body?
3) What are some functions for non-coding DNA [e.g. Centromere, telomere, promoter, terminator, silencer, enhancer, introns (alternative splicing)]
Explanation:
1) involves packing of DNA that involves DNA associating with H1, H2a, H2b, H3, H4 histone, scaffolding proteins and link genes)
2) since all somatic cells are genetically identical, differentiation involves silencing certain genes through different chemical signals that the stem cell's environment is in, resulting in certain genes related to its function being expressed while other genes are silenced.
3) non coding sequences although the bulk of DNA, has numerous importsnt roles. ( centromere allow for association of kinetochore proteins to form kinetochore that acts as site of attachment for microfibrils during mitosis or meiosis) (telomere act as sacrificial DNA that prevents erosion of Coding DNA during every round of semi-conservative DNA replication)...
Answer:
Question 1- who 64 codon is responsible for the formation of all types of protein? who a codon expresses itself to form an amino acid?
Question 2- what is lac operon?
Question 3 - what are the exon and intros in the Hnrna and what are their functions?
Explanation:
Answer 1- A codon is a group is three nitrogenous bases that together code a specific amino acid. These base pairs arrange themselves in a new order to code for a new amino acid.
Answer 2- Lac operon is a regulation unit present in the nucleus, which helps in the regulation of the formation of the protein in the presence of the inducer unit.
Answer 3- exons and introns are the codings and non-coding sequences of the DNA respectively. These introns are removed under the modification setup so that Rna can make protein without any hindrance.
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The classification levels of a human are listed below from largest to smallest. Eukarya Animalia Chordata Mammalia Primates Hominidae Homo sapiens Which level of biological classification do Mammalia and Hominidae represent, respectively? class and family order and class family and species species and kingdom
Answer:
The answer is class and family.
Explanation:
Taxonomic groups are used for biological classification. There are eight main taxonomic groups: domain, kingdom, phylum, class, order, family, genus and species, with the domain as the most inclusive and species as the least inclusive. If we take a look on Mammalia and Hominidae classification, we can assume that Mammalia represents class, and Hominidae represents family:
1. Domain: Eukarya
2. Kingdom: Animalia
3. Phylum: Chordata
4. Class: Mammalia
5. Order: Primates
6. Family: Hominidae
7. Genus: Homo
8. Species: Homo sapiens
Answer:
the answer is class and family
Explanation:
On the Bahamian island of Andros, mosquitofish populations live in various, now-isolated, freshwater ponds that were once united. Currently, some predator-rich ponds have mosquitofish that can swim in short, fast bursts; other predator-poor ponds have mosquitofish that can swim continuously for a long time. When placed together in the same body of water, the two kinds of female mosquitofish exhibit exclusive breeding preferences. Which two of the following have operated to increase divergence between mosquitofish populations on Andros? improved gene flow bottleneck effect sexual selection founder effect natural selection
The increased divergence between mosquitofish populations on Andros is due to the bottleneck effect and natural selection.
Explanation:The two factors that have operated to increase divergence between mosquitofish populations on Andros are the bottleneck effect and natural selection. The bottleneck effect occurs when a population is drastically reduced, resulting in a loss of genetic variation. In this case, the isolation of the ponds from each other created smaller populations that were exposed to different selective pressures, leading to divergence. Natural selection then acts on these smaller populations, favoring traits that are advantageous in their specific pond environment.
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The location of the first nucleotide read by rna polymerase is the
Answer:
Promoter site (region)
Explanation:
RNA polymerase is known to be an enzyme that is involved in the synthesis of RNA from DNA by polymerizing the RNA from the 5’ to 3’ end. The process of RNA transcription from DNA begins at the promoter site (region) which is a designated base sequence that marks the beginning of transcription process on the long DNA strand.
Which type of star acts like a “lighthouse” that periodically emits radio waves into space?
a. black hole
b. neutron star
c. pulsar
d. supernova
Answer: B
Explanation:
had this in earth and space
Based on the information in the table, eating which type of oil would most
likely cause buildup in blood vessels?
Well... a "build up in blood vessels" is actually called a CLOT. That should help you. :)
Answer: The answer is Coconut oil For Apex.
Explanation:
it has the most saturated fat. (85)
Which of the following is often provided by anthropologists and biologists as a possible explanation for the development of bipedal hominids? A. Standing upright allowed for better tree climbing B. Standing upright allowed for more efficient movement C. Standing upright allowed for sightlines over tall grasses and savannah shrubbery D. Standing upright allowed for better foraging of tree fruits
Answer:
C. Standing upright allowed for sightlines over tall grasses and savanna shrubbery
Explanation:
One of the most accepted theories about the development of bipedalism of the hominids is that it was mostly because of the tall grasses and shrubs, so standing upright was providing them with better view. Once the environment changed, and the tropical rainforest was turned into savanna, the hominid ancestors had to adapt in order to survive. Being helpless against the large predators, they needed something in order to be able to detect them from bigger distance so that they can avoid them. The solution seemed to be to be able to see above the tall grasses and shrubs, which meant that they started to use their legs more and more in order to stand up taller. This gradually led to better development of legs for upright standing and walking, also causing changes in the structure of the body, providing the hominids with an adaptation that enabled them to survive in the very dangerous environment.
Answer:
The answer is "C. Standing upright allowed for sightlines over tall grasses and savanna shrubbery"
Hope this helps!!!
The sporophyte generation is:a. diploidb. haploidc. polyploid
Answer:
a. diploid
Explanation:
After the fertilization process between haploid egg cell and haploid sperm cell, diploid zygote is formed. Zygote has two sets of chromosomes (one from each gamete) which means it is diploid. Sporophyte stage of life cycle will develop from diploid zygote. During the life cycle of a plant (or algae) sporophyte phase alternates with a gametophyte phase which is haploid. In both, seed plants and flowering plants sporophyte phase (roots, stem, leves, cones/flowers) is more prominent than gametophyte phase (pollen, embryo sac).
Sporophyte phase produces spores via meiosis that develop into gametophte.
What is the floor of an aquatic biome called? benthic zone photic zone marine zone aphotic zone
Answer: The floor of an aquatic biome is called the benthic zone.
Explanation:
Benthic zone is called as the floor of an aquatic biome. So, the correct option is A.
What is Benthic zone?The benthic zone is defined as the lowest ecological zone in a water body, usually consisting of sediments on the ocean floor, where these sediments play an important role in providing nutrients for the organisms that live in the benthic zone.
Benthic zone is called as the bottom zone of a water body, fresh or marine where the light penetration is nil. Benthic animals include the polychaetas which live in or on the bottom while the animals that live in or on the bottom of the Bay are called the benthic community.
Despite being hidden, the benthic zone is a crucial component of lake ecosystems. Many aquatic species can breed, forage, and find shelter in this area alone. The shallow coastal waters' benthic zones offer optimum environment for animal and amphibian breeding.
So, the correct option is A.
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Which best explains the importance of nitrogen in the cycling of energy and
matter?
A Nitrogen increases protein production in plants.
B Nitrogen decreases protein production in plants.
C Nitrogen decreases the effectiveness of photosynthesis.
D Nitrogen increases the effectiveness of photosynthesis.
Answer:
The correct option is A.
Explanation:
Nitrogen is a gas that is present in high quantity in the atmosphere. This gas contribute significantly to the growth and development of plants and that of animals. Nitrogen in the atmosphere usually get incorporated into the soil via lightening and it is typically fixed by nitrogen fixing bacteria. This nitrogen is then used as part of the nutrients that plants need to grow and develop and it is also used in the production of protein in plant parts. Animals use these plants as source of proteins in their diets. Ultimately the waste products derived from protein is return to the soil where they are broken down by decomposers to nitrogen forms that plants can use. Thus, nitrogen increases the production of proteins in plants.
Option A) Nitrogen increases protein production in plants, vital for growth and development, making it crucial in the cycling of energy.
The best explanation for the importance of nitrogen in the cycling of energy and matter is that nitrogen increases protein production in plants (Option A). Nitrogen is a critical macronutrient, essential for the synthesis of proteins, nucleic acids, and chlorophyll. Plants require these compounds for growth and development, and insufficient nitrogen can lead to stunted growth and chlorosis (yellowing of leaves). Atmospheric nitrogen (N₂) is abundant but not directly usable by plants; they rely on nitrogen fixation processes to convert it into biologically available forms like ammonia (NH3). Nitrogen is thus crucial for the primary productivity of plants and the overall health of ecosystems.
If an allele makes up one fourth of a population's alleles for a given trait, its relative frequency is
.25
This is because 1/4 = .25
To find the allele frequency, you need to find the decimal representation of the fraction.
For example: If an allele makes up four twentieths of a population's alleles, then the frequency would be .2 (4/20 = .2)
An alternative form of genes that are variant and are responsible for conferring the phenotypic character is called an allele. A single allele gets inherited to the offspring from each parent. The allele can make purebred or heterozygous traits.
The relative frequency is 25%.
What is the relative frequency and how it is calculated?A chance or probability of the occurrence of the gene carrying the specific allele in the percentage of a certain population is called relative frequency.
The allele is the question that makes up the [tex]\dfrac{1}{4} \rm th[/tex] population hence,[tex]\begin{aligned} & = \dfrac{1 }{4} \\\\& = 0.25\end{aligned}[/tex]
For calculating it in percentage:[tex]\begin{aligned} & =0.25 \times 100\\\\& = 25 \%\end{aligned}[/tex]
Therefore, 25% is the relative frequency.
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Consider the genetic cross for absent-mindedness, which is a dominant trait. What is the probability that the offspring of this cross will be absent-minded?
Answer:
The correct answer is D.} 100%
Explanation:
Answer:
100%
Explanation:
Which statement about reproduction is true? A. Angiosperms reproduce using seeds, but gymnosperms do not. B. Gymnosperms reproduce using seeds, but angiosperms do not. C. Both angiosperms and gymnosperms reproduce using seeds. D. Neither angiosperms nor gymnosperms reproduce using seeds.
Answer:
c
Explanation:
A is correct because Gynosperms using female and male cones and Angiosperms use seeds.....Brainliest?
I will mark brainliest! Complete the possible outcomes for each generation in the pedigree chart.
Fillers:
aa AA Aa
Answer:
The correct sequence of fillers left to right are AA. Aa, and aa.
Explanation:
In the given pedigree chart, parents are heterozygous Aa and homozygous AA produce gametes A and a, and A and A respectively. All gametes will assort and possible outcomes will be AA, AA, Aa, and Aa in first generation.
Cross between Aa and Aa will produce gametes A, A, and A, a. All these gametes assorted and produce offspring and outcomes are AA, aa, Aa, and Aa in second generation.
Thus, The correct sequence of fillers left to right are AA. Aa, and aa.
Answer:
The correct sequence of fillers left to right are AA. Aa, and aa.
Explanation:
A chromosomal mutation where a segment breaks off, flips, and then reattaches itself is called a(n): reciprocal translocation. translocation. inversion. duplication. deletion.
Answer:
Inversion
Explanation:
This type of mutation is not as lethal on addition of deletion mutations. This is because it does not cause a frame-shift mutation. Inversion only reverses the order of nucleotides in a section of a DNA strand and the genes in this regions may produce defective proteins.
Would the pi values of the animal insulins be the same as, greater than, or less than human insulin?
The pI values for animals and human insulin are the same, with the exception of duck and chicken insulin.
What is a pI value?The pI value is the isoelectric point of the protein or amino acid chain. The isoelectric point can be given as the pH value at which the net charge of the insulin molecule is zero.
The insulin molecule is composed of amino acids that are charged at a specific pH. With the change in the pH, charge transfer takes place and results in the net-zero pH at pI.
The changeable amino acids in animal insulin and human insulin are the same. Thus, the pI values for human and animal insulin are the same.
The exceptions to the condition are duck and chicken insulin.
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Final answer:
Animal insulins such as bovine and porcine may have different isoelectric points (pI) compared to human insulin due to variations in amino acid sequences. Recombinant DNA technology enables the production of insulin identical to human insulin, which circumvents the immune response issues caused by animal-sourced insulin.
Explanation:
The isoelectric point (pI) of animal insulins such as those derived from pigs (bovine) and cows (porcine) may differ from that of human insulin due to their amino acid composition differences. Pig insulin differs from human insulin by one amino acid and beef insulin by three. These sequence differences can affect the pI of the insulin molecules because pI is determined by the overall charge of the protein, which in turn is influenced by the presence and position of charged amino acids within the sequence.
Insulin's functionality is also related to its similarity to human insulin. Although animal insulins were effective in treating diabetes, they were recognized by the immune system as foreign, which could lead to an antibody response and require higher doses of insulin for treatment. Furthermore, the animal-derived insulin had the potential to induce other immunological complications.
With the advent of recombinant DNA technology, it has become possible to produce insulin that is identical to human insulin in bacteria like E. coli. This insulin has the same sequence and therefore the same pI as naturally occurring human insulin, eliminating the immune response seen with animal-sourced insulins and allowing for a more consistent and safe treatment for diabetes.
Different ratios occur in crosses with single gene pairs or two gene pairs. What types of ratios are likely to occur in crosses dealing with a single gene pair?
Answer:
Genotype ratio: 1, 1:1, 1:2:1
Phenotype ratio: 1, 3:1
Explanation:
Single gene pair cross is also known as monohybrid cross. This means that only one gene usually with two alleles is observed and it express one trait.
For example, if we name the gene for a certain trait with A, the possible genotypes are AA (dominant homozygous), aa (recessive homozygous) and Aa (heterozygous). Possible crosses are:
P: AA x AA
F1 : all of them are AA
The same is with aa x aa (all of the offspring are with aa genotype)
P: AA x Aa
F1: AA Aa AA Aa (genotype ratio 1:1) (phenotype ratio 3:1)
The same genotype ratio is in aa x Aa (offspring will have aa Aa aa Aa-(genotype ratio 1:1) (phenotype ratio 1:1)
P: Aa x Aa
F1: AA Aa Aa aa (genotype ratio 1:2:1) (phenotype ratio 3:1)
P: AA x aa
F1: Aa Aa Aa Aa (1)
Final answer:
In genetics, single-gene pair crosses often result in simple Mendelian ratios, such as a 3:1 phenotype ratio and a 1:2:1 genotype ratio in a monohybrid cross with complete dominance. Two-gene interactions can lead to more complex ratios, such as 9:3:3:1 in a dihybrid cross, and are characterized by a phenotypic ratio totaling 16 parts when genes are assorting independently into gametes.
Explanation:
In genetics, when dealing with crosses involving a single gene pair, the typical ratios observed are a result of the modes of inheritance such as complete dominance, incomplete dominance, or co-dominance. For example, in a monohybrid cross of heterozygote parents with complete dominance (Aa x Aa), the expected phenotype ratio for the dominant versus recessive trait is 3:1, and the genotype ratio is 1:2:1 (where the genotypes are AA:Aa:aa). However, in situations involving epistasis or other gene interactions, even when considering a single gene pair, the phenotypic ratios can differ from the expected simple Mendelian ratios.
It's important to differentiate between single-gene crosses and two-gene interactions. A phenotypic ratio that totals 16 is indicative of a two-gene interaction, such as observed in Mendel's dihybrid cross which gives a 9:3:3:1 ratio. However, for a single-gene pair, we typically do not encounter ratios that total 16, unless modified by gene interactions or epistasis.
The _____ species concept is the most applicable to classifying species from the fossil record.
Answer:
Morphological (Morphology)
Explanation:
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features.
Humans have more than 100 vestigial structures in their bodies. Comparative morpho. is an important tool that helps determine evolutionary relationships between organisms and whether or not they share common ancestors.
However, it is also important evidence for evolution.
Land-based plants must have mechanisms to disperse and scatter their seeds so that new plants don't grow in the shadow of old plants. Which of the following do gymnosperms, such as pine trees, rely on to disperse fertilized seed cones? A. Wind B. Animals that eat the seeds C. Animals, seed wings, and wind D. Seed wing structures
Answer:
Its c ,animals ,seed wings and wind
Explanation:
There are mainly 2 ways the seeds of gymnosperms are dispersed :-
The gymnosperms that are old become rip and their cones open up and the seeds are dispersed by the wind.There are small seed wings present on seeds that take the seed to long distance places The fruit of the gymnosperms gets eaten by the animals in different places as its their source of food .The seeds are not digested by the animals and excreted as a result the seed is dispersed far away from the sourceWhich stage of cellular respiration produces the most atp?
Answer:
Electron transport Chain (Oxidative phosphorylation)
Explanation:
Cellular respiration can be defined as the process that involves the breakdown of glucose molecules into CO2 and H2O to generate energy inform of Adenosine Triphosphate (ATP). Also, cellular respiration usually takes place in the cells of an organism by converting biochemical energy present nutrients into Adenosine Triphosphate. Furthermore, it takes place in three stages which includes: glycolysis, TCA cycle and Electron transport (Oxidative phosphorylation). Thus, oxidative phosphorylation is the final stage of aerobic cellular respiration that produces maximum ATPs.
The oxidative phosphorylation stage of cellular respiration produces the most ATP. This stage utilizes an electron transport system to create an electrochemical gradient, which facilitates the production of ATP. Although other stages also produce ATP, about 90% is made during oxidative phosphorylation.
Explanation:The stage of cellular respiration that produces the most ATP is the Oxidative Phosphorylation stage. During this stage, NADH and FADH2, made in glycolysis, the transition reaction, and the Krebs cycle, transfer their electrons to an electron transport system (ETS). This series of reactions is facilitated by protein complexes located in the inner membrane of a cell's mitochondria. The energy from the transferred electrons then creates an electrochemical gradient across the membrane, leading to the production of ATP through chemiosmosis, also known as oxidative phosphorylation.
It's important to note that while other phases such as glycolysis and the Krebs cycle also produce ATP, the bulk, about 90%, is generated during oxidative phosphorylation. This makes oxidative phosphorylation the most ATP-rich stage of cellular respiration.
For every oxidized NADH in the electron transport chain (ETC), approximately three ATP are produced, and around two ATP are produced for each oxidized FADH2. Consequently, one glucose molecule that enters the aerobic respiration process can net roughly 36 ATP in total.
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Which best contrasts flocking and schooling?
A)Flocking provides aerodynamic efficiency and schooling provides hydrodynamic efficiency.
B)Flocking provides protection and schooling provides hydrodynamic efficiency.
C)Flocking provides aerodynamic efficiency and schooling provides foraging benefits.
D)Flocking provides reproductive benefits and schooling provides foraging benefits.
Hello There!
A)Flocking provides aerodynamic efficiency and schooling provides hydrodynamic efficiency.
Answer:
A)
Explanation:
Flocking provides aerodynamic efficiency and schooling provides hydrodynamic efficiency. ... The birds are aerodynamically efficient so they can use the air around them to reduce the energy used to fly.
When we look at islands across the planet (think the islands of the Galápagos and Hawaii) we see that there are a remarkable number of island endemic species, species that are found nowhere else. What is a possible explanation for this observation?Sympatric speciation on islands is easier than in mainland environments because rates of chromosomal evolution are higher on islands.Extinction rates are lower in islands so species that have gone extinct elsewhere persist on islands.Sympatric speciation on islands is easier than in mainland environments because levels of disruptive selection are higher on islands.Vicariance events are more common on islands than in mainland environments.Island isolation promotes allopatric speciation.Island isolation promotes allopatric speciation.
Answer:
Island isolation promotes allopatric speciation.
Explanation:
Allopatric speciation is a form of speciation (creation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations reach a high level of genetic divergence. They can no longer interbreed which means they become two different species (speciation).
New populations evolve as result of mutation, genetic drift and natural selection.
For example, Galapagos finches are isolated from others by the ocean (geographic isolation). Because of the isolation, the finches don’t breed with one another. So, they developed unique characteristics and became endemic.
List the structures that make up the pathway of air through the respiratory system starting with the external nares.
Answer:
Nose: Air is inhaled through the nostrils (and sometimes through the mouth) where it is filtered by the hairs and cilia to remove dust particles and moistened. The nasal cavity also moderates the temperature of the inhaled air.
Pharynx: This is a common passage for food, water, and air. It leads from both the nose and the mouth and leads to both the trachea (windpipe) and the oesophagus (foodpipe).
Larynx: This is the voice box situated just over the trachea and has a flap called the epiglottis which closes during swallowing to prevent food from entering the trachea and opens during breathing.
Trachea: Air now enters the windpipe which is situated behind the sternum (breastbone) and between the two lungs.
Bronchus: From the trachea, two bronchi (one bronchus for each lung) enter the lungs and divide and subdivide into secondary and tertiary bronchi, getting narrower as they proceed into the lung.
Bronchioles: The tertiary bronchi branch into fine tubules called bronchioles, the last passageways for air.
Alveoli:. Air ends its pathway in the alveoli (sing. alveolus) which are tiny sacs with very fine singe-celled walls. These alveoli are surrounded by capillaries that connect the pulmonary arteries and veins and that enable transfer of oxygen and carbon dioxide.
The pathway of air through the respiratory system starting with the external nares includes the nose, mouth, larynx, pharynx, lungs, and diaphragm.
Explanation:The pathway of air through the respiratory system starting with the external nares includes the following structures:
Nose: The major entrance and exit for the respiratory system.Mouth: A secondary opening for the respiratory tract.Larynx: Also known as the voice box, it connects the pharynx to the trachea.Pharynx: It is composed of three major sections: the nasopharynx, oropharynx, and laryngopharynx. It connects the nasal cavity and oral cavity to the trachea and esophagus.Lungs: The main organs of the respiratory system where gas exchange takes place.Diaphragm: A dome-shaped muscle that separates the chest and abdominal cavities and plays a role in breathing.Feather color in budgies is determined by two different genes. True or False
Answer:
the answer is true.