Answer:
Bacteria and Archaea
Explanation:
The prokaryotes are classified into two domains, the bacteria and the archaea domains. This makes them unique as the other organisms fall into one of the three domains, not in two of them. The prokaryotes come in many different shapes. They all do fall into three categories, bacilli (which are the rod-shaped prokaryotes), spirilli (which are the spiral-shaped prokaryotes), and cocci (which are the spherical shaped prokaryotes).
Prokaryotes are classified into two domains: Bacteria and Archaea. These domains include unicellular organisms without nuclei or other complex structures, but they differ in genetic composition and sequences, cell wall structures, and lipid composition.
Explanation:The two domains that prokaryotes are classified into are Bacteria and Archaea. Both of these domains include unicellular organisms lacking a nucleus and other complex organelles, hence falling under the category of prokaryotes. However, they differ significantly in their genetic composition and sequences, cell wall structures, and lipid composition. For instance, bacteria have peptidoglycan in their cell walls, while archaea do not.
Bacteria, the most well-known and studied category of prokaryotes, are incredibly diverse in terms of habitats, ranging from human skin to hot springs to the deep ocean. On the other hand, Archaea are extremophiles, thriving in extreme conditions like high temperatures, salinity or acidity, where most other life forms cannot survive.
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What is the smallest unit of life in the human body?
The cell is the smallest unit of life in the human body is capable of independent existence and comprises all living things as well as the body's tissues.
What is a cell?The cell membrane, nucleus, and cytoplasm make up a cell's three basic structural components. The cell membrane, which encloses the cell, regulates the molecules that enter and exit the cell.
The fact that cells come in distinct, distinguishable packets helps explain why they are regarded as the foundational components of life.
This is due to the fact that every cell is surrounded by a component called the cell membrane, which, like a house's walls, acts as a definite partition between the inside and outside surroundings of the cell.
Therefore, cells in the human body are capable of independent existence and comprise all living things as well as the body's tissues.
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The smallest unit of life in the human body is the cell. All types of cells have common features, which include a nucleus and cytoplasm, that perform vital functions necessary for life.
Explanation:The smallest unit of life in the human body is the cell. Cells form the foundation for life and carry out all the key functions necessary for living organisms.
There are many types of cells in the human body, each with its own function. For example, red blood cells transport oxygen, while skin cells protect the body from external danger.
Despite their differences, all cells share common features such as a nucleus which contains DNA, and cytoplasm which includes the machinery for cell functions.
These components, along with many others, work together to maintain life at the most basic level.
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The term facultative anaerobe refers to an organism that
Answer: It could be referred as an organism that lives in an oxygenated environment.
Explanation: It could be referred as what I said above, because, if oxygen is not present it could die.
A facultative anaerobe is an organism that can survive and grow in both the presence and absence of oxygen.
A facultative anaerobe is an organism that can survive and grow in both the presence and absence of oxygen. These organisms have the ability to switch between aerobic and anaerobic respiration depending on the availability of oxygen. They are capable of living in environments with or without oxygen, and can utilize different metabolic pathways to produce energy.
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What characteristic of radioactive decay makes it useful for determining the absolute age of samples?
Question 10 options:
occurs at a constant rate
changes based on temperature
speeds up under high pressure
slows down in very dense samples
Answer:
occurs at a constant rate
Answer:
occurs at a constant rate
Explanation:
Radioactive dating is the use radioactive decay to determine the age of samples or substances.
Radioactive dating is the process of determining the age of a sample or substances based on the radioactive isotopes found in that substance and the radioactive decay constant or rates.
The elements that are used in radioactive dating is Carbon, Potassium and Uranium.
Radioactive decay is a very accurate means of determining the age of a samples because of the constant rate at which it occurs.
Which of these phrases best summarizes the mission of the Convention on Biological Diversity?
Answer:
sustainal development
Explanation:
Answer:
sustainable development
Explanation:
for ap!xs
Which structure or substance is responsible for helping filter and clean air as it passes through the trachea and bronchioles?
A. Cilia
B. Saliva
C. Nasal passages
D. Alveoli
Answer: A
Explanation:
because the cilia is in the trachea and it pushes foreign things out as it breathe in air and it pushes out things such as dust and all that
Answer: Cilia
Explanation: Respiration can be defined as the phenomenon in which the exchange of gases takes place between the lungs and outer environment.
The process by which the air is inhaled is known as inhalation and the process y which carbon dioxide is moved out of the body is known as expiration.
The whole of the respiratory track is ciliated that protects the nasal passage by the entrance of the harmful pathogens, dirt and foreign particles. It propels out the foreign particles out of the body by the back and forth movement.
If you repeat an experiment and the results are very different from the results you got the first time, the next step would be to
a. trust the second results.
b. try a different experiment.
c. decide which results are better.
d. repeat the experiment again.
Answer:
repeat the experiment again.
Answer:
repeat the experiment again
plzzz mark me the brainliest
Friction is the force that
Answer:
"Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact."
hopefully this is helpful :3
If a red cow (homozygous dominant) is crossed with a white cow (homozygous dominant), what alleles will the offspring have?
Answer:
They would get one allele from each parent.
Explanation:
Because each parent is honozygous dominant, this means that each parent has a pair of the same allele. For example, RR for red cow and WW for white cow. So if we cross them, all their off springs will have a combination of RW.
W W
R WR WR
R WR WR
Answer:
RW
iam really sure
Explanation:
If a red cow (homozygous dominant) is crossed with a white cow (homozygous dominant), what alleles will the offspring have?
Rw
RW
rW
rw
Which of the following best describes the Expensive Tissue Hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that Homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.
Answer:
The correct option is this: BRAIN REQUIRES MORE ENERGY, SO THE GUT HAD TO BE REDUCED AND LARGER BRAINS AND TOOL USED LED TO HIGHER QUALITY DIETS.
Explanation:
The Expensive Tissue Hypothesis is an hypothesis that relates the relationship between the brain and the gut during the period of human evolution. The hypothesis submits that in order for human to develop a larger brain without increasing his metabolic rate, he has to use less energy on other expensive tissues such as gut. Thus, the hypothesis suggests that human evolve a larger brain and make up for this development by evolving a gut that need less energy and by eating higher quality foods that are obtained by mean of using agricultural tools.
Which of the following allele pairs demonstrate a heterozygous dominant trait?
A.aa
B.AA
C.Aa
D.AB
C. Aa demonstrates a heterozygous dominant trait.
What is a heterozygous dominant trait?A heterozygous dominant trait is a genetic trait that is determined by the presence of two different alleles, one dominant and one recessive, in an individual's genotype. The dominant allele will express its effect, determining the phenotype (observable traits) of the individual, while the recessive allele has no visible effect.
For example, if the dominant allele for a certain trait codes for the production of a functional protein and the recessive allele codes for a non-functional protein, the heterozygous individual will express the functional protein and display the dominant trait.
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Radio tagging of animals is a way to save many endangered animal species. How do scientists use radio tagging to help them save animals? A) Scientists can track the movements of the endangered animals. B) Scientists can study the movements of the animals' predators. C) Radio tags act as bait for the prey of these endangered animals. D) Radio tags keep the predators of the tagged animals away from them.
Answer:
A) scientist can track the movements of the endangered animals
Explanation:
to monitor them
which organisms are most closely related?
A. Buteo lineatus and Buteo platypterus
B. Elanus leucurus and Pandion haliaetus
C. Carpodacus mexicanus and icterus galbula
D. Cyanocitta stelleri and Polysticta stelleri
The organisms Buteo lineatus and Buteo platypterus are most closely related. Thus, the correct option is A.
How evolutionary relationships are determined among the organisms?Evolutionary relationships among the organisms of the same or different species are determined with the help of a phylogenetic tree. It initiates with an ancestral group and evolves with time.
Buteo lineatus and Buteo platypterus are two distinguishable kinds of hawks. Buteo lineatus is a red-shouldered hawk while Buteo platypterus is a broad-winged hawk. Both the organisms are native to North America.
Therefore, the correct option for this question is A.
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Which statement best describes why carbon can form a wide variety of organic compounds? Each carbon atom ionically bonds with atoms of carbon, hydrogen, oxygen, and nitrogen. Each carbon atom covalently bonds with atoms of carbon, hydrogen, oxygen, and nitrogen. Each carbon atom ionically bonds with atoms of oxygen and nitrogen. Each carbon atom covalently bonds with atoms of oxygen and nitrogen.
Answer:
Carbon can form a wide variety of organic compounds because:
Each carbon atom covalently bonds with toms of carbon, hydrogen oxygen, and nitrogen
A carbon atom can have 4 single valence electrons around it. This allows it to form covalent bonds with many different atoms.
Explanation:
Please mark brainliest and have a great day!
Answer:
the answer is "B" on edge
Explanation:
Where are many natural gas drill sites located?
Answer:
Explanation:
Did you mean the United States? If you did then Texas Oklahoma and California are the most likely places you would find Natural Gas. Natural Gas and Oil do go together and those states were where the major oil finds were.
At the complete end of cellular respiration, how many molecules of ATP are produced? A. 26 B. 38 C. 15 D. 34
Answer:
The correct answer will be option B (38).
Explanation:
Cellular respiration or oxidation of glucose proceeds in three sequential reactions: .Glycolysis, Kreb cycle and Electron transport chain (ETC)
1 NADH₂ produces 3 ATP
1 FADH₂ produces 2 ATP
During Glycolysis produce -
NADH₂- 2 molecules =2x3 = 06 ATP
=2x4 = 08 ATP depending on shuttle system
ATP-phosphorylation = 02 ATP (utilized during process)
So, net ATPs synthesized in glycolysis are - 08 ATP.
During Link reaction and Krebs cycle -
NADH₂- 8 molecules = 8x3= 24 ATP
FADH₂- 2 molecules = 2x2= 04 ATP
ATP-phosphorylation= 02 ATP
so, net ATP produced in Link reaction and Krebs cycle are= 30 ATP
Hence, 08 ATP from glycolysis and 30 ATP from link and kreb cycle forms 38 ATP.
Thus, option B is the correct answer.
Sally was working in the kitchen when she was careless and picked up a hot pan with her bare hand. After healing, Sally continues to feel a loss of sensation on the lateral surface of her palm. Although Sally maintains normal movement in all her muscles, her cutaneous sensation has been impaired. Which nerve was most likely damaged as a result of her burning incident? View Available Hint(s) Sally was working in the kitchen when she was careless and picked up a hot pan with her bare hand. After healing, Sally continues to feel a loss of sensation on the lateral surface of her palm. Although Sally maintains normal movement in all her muscles, her cutaneous sensation has been impaired. Which nerve was most likely damaged as a result of her burning incident? Ulnar Radial Median Musculocutaneous Axillary
Answer:
The median nerve would be the most damaged nerve.
Which of the following is a polygenic trait in humans?
A.attached ear lobes
B.height
C.widow's peak hairline
Answer:
B; height
Explanation:
Traits are polygenic when there is a wide variation in the trait.
The polygenic trait in humans is option B. height.
What is a polygenic trait in humans?Polygenic traits are traits that are controlled by multiple genes instead of just one. The genes that control them may be located near each other or even on separate chromosomes. Because multiple genes are involved, polygenic traits do not follow Mendel’s pattern of inheritance. Instead of being measured discretely, they are often represented as a range of continuous variation.Some examples of polygenic traits are height, skin color, eye color, and hair color.HeightHuman height is controlled by many genes, in fact, there are over 400 genes related to height, and all of these genes interact to make up a person’s phenotype. This is a very large number, but it makes sense because height is a compilation of the lengths of many different body parts, such as leg bones, the torso, and even the neck.To know more about Polygenic traits, refer to: https://brainly.com/question/12691060
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Ian experiences pain in his leg after a fall, so he goes to the doctor. After an exam, the doctor explains to Ian that he has injured a piece of tissue that connects his leg muscle to bone. What piece of tissue is the doctor describing?
Answer:
Tendon or a connective tissue
Explanation:
Tendons are a type of connective tissue that attaches muscle to bones. They are strong, fibrous and flexible. They also attach muscles to other organs. Tendons have a high tensile strength which is useful to withstand muscle contractions. They are made up of bundles of connective tissue that contribute to its strength.
Gene expression is the process whereby genetic information in the cell is used to produce proteins. This is referred to as the central dogma. Match the descriptions of the components of gene expression with the correct terms.
A.The molecule that carries information from the DNA specifying a polypeptide to ribosomes.
B. The synthesis of an RNA copy of a gene.
C. The synthesis of a specific sequence of amino acids on a ribosome.
D. A molecule found in the nucleus of cell that contains the cell's genome.
E. A molecule made of amino acids that correspond to the genetic information in a structural gene.
DNA
TranscriptionmRNA
Polypeptide
Translation
Transcription is the creation of an RNA from a DNA template. The mRNA carries genetic information to ribosomes for translation, where a specific sequence of amino acids, forming a polypeptide, is constructed. The DNA in the nucleus of the cell holds the information for these processes.
Explanation:The process of gene expression involves several key steps and components:
Transcription refers to the synthesis of an RNA copy of a gene (B).mRNA, or messenger RNA, is the molecule that carries information from the DNA specifying a polypeptide to ribosomes (A).Translation is the synthesis of a sequence of amino acids on a ribosome based on the information conveyed by the mRNA (C).DNA is the molecule found in the nucleus of a cell containing the cell's genome. It is the blueprint for building the body's proteins (D).A Polypeptide is a molecule made of amino acids that correspond to the genetic information in a structural gene. These polypeptides fold into complex shapes to form proteins (E).Learn more about Gene Expression here:https://brainly.com/question/33276216
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tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?
Answer:
Rain forests recycle nutrients. (Apex)
Explanation:
Plants can convert atmospheric carbon dioxide to other carbon based compounds through photosynthesis. Rain forests are the largest carbon revisers and are responsible for most of the oxygen in the atmosphere
Basically they take in carbon dioxide,convert it to oxygen and then release the oxygen back into the environment. Thus helping to prevent the plant from heating up.
Answer:
Their productive organisms quickly recycle nutrients.
Alcohol builds up in the bloodstream after a person consumes more than how many drinks per hour? 1 2 3 4
Answer:
Option B, 2
Explanation:
As per the standard rule if a person taken one drink per hour then he/she gets enough time to burn off the alcohol consumed irrespective of number of drinks taken at the same rate. Hence, there is no accumulation of alcohol in the body.
However, if a person intakes more than one drink per hour then alcohol starts building/accumulating with in the blood stream. After consuming 2 drinks per hour , one is dissolved but the other one accumulates.
Hence, option B is correct.
The human body can metabolize approximately one standard drink per hour. Consuming more than this causes alcohol to build up in the bloodstream, with potential negative effects such as reduced reaction times and lowered alertness. Factors such as body weight, genetics, and consumption rate can affect how quickly alcohol is metabolized.
Explanation:Alcohol is metabolized and removed from the body at a certain rate; this rate slightly varies between individuals, typically being slower in women compared to men. On average, the human body can metabolize approximately one standard drink per hour. Drinking more than this will cause alcohol to build up in the bloodstream, resulting in higher blood alcohol concentrations. Consider that factors such as body weight, genetics, and consumption rate may also affect how quickly one can metabolize alcohol.
Drinking more than the body can metabolize can lead to riskier effects. Some effects of consuming a large quantity of alcohol include decrease in visual acuity, slow reaction times, lowered alertness, and loss of behavioural control. Excessive consumption can result in complete loss of consciousness and in some cases, can lead to health problems such as Fetal Alcohol Spectrum Disorder (FASD) in infants if consumed by a pregnant woman.
It's important to be aware of one's own drinking habits and the potential effects. Practicing moderation and understanding the body's limits when it comes to alcohol can help promote healthier and safer behaviour.
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what is a blastocyst
A. a sperm fused with an egg
B. a structure that nourishes the fetus
C. a ball of about 100 cells
D. an unfertilized egg
Answer: The answer is C
Explanation: it is the answer with 100 (apex)
A sperm fused with an egg is a blastocyst. Thus the correct option is A.
What is blastocyst?Three days after fertilization, a normally developing embryo contain about six to 10 cells. By the fifth or sixth day, the fertilized egg is known as a blastocyst (a rapidly dividing ball of cells).
The inner group of cells will become the embryo. The outer group will become the cells that nourish and protect it.
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Which if the following best describes why invertebrates isn’t considered a scientifically valid word when classifying animals
Answer:
I believe the answer is b.
Explanation:
All invertibrates share one charistic in common, they have no backbone.
Answer:
The correct answer is option D.
Explanation:
Invertebrates don’t have a common similarity in an anatomical structure that all have. They are different in their structure so they should not be grouped into one group.
All different groups of invertebrates have a different type of symmetry, composition, and anatomically different but there is not a common character except the fact that no one has vertebra.
Thus, the correct answer is option D.
Cells control gene expression at which steps
Answer:
Any step of gene expression may be modulated, from the DNA-RNA transcription step to post-translational modification of a protein.
What's the waste product of electrons and pyruvate combining in fermentation?
Answer:
Lactate
Explanation:
Under the conditions of oxygen scarcity, pyruvate does not enter the Kreb's cycle in the form of acetyl CoA. Rather pyruvate is reduced into lactate by accepting the electrons from NADH. Reduction of pyruvate and oxidation of NADH form lactate and NAD+. The process is called lactic acid fermentation.
Here, the NAD+ enter the glycolysis to continue the energy production while lactate is a waste product.
What body systems are required when you are eating dinner? Explain how the systems work together.
Answer:
When you eat, the digestive and circulatory systems work together and increase the amount of nutrients in your body. As the nutrients are processed, your stomach sends signals to your brain to tell your body that you are full and to stop eating.
Explanation:
Scientists are conducting a study on the effectiveness of a new drug on memory loss. They are giving some of the test subjects the new drug to find out if it improves their long-term memory.
Which are possible limitations of this study? Check all that apply.
A) Test subjects may want to participate in additional experiments.
B) Test subjects may think they should be paid more.
C) Test subjects may get bored and want to quit early.
D) Test subjects may have to travel during the experiment.
E) Test subjects may have full-time jobs.
This is multiple choice. Thank you for the help!
Answer:
the answer is c) Test subjects may get bored and want to quit early.
Explanation:
what are most genetic disorders that occur in humans?
A.polygenic
B.recessive
C.dominant
D.sex-linked
Answer:
d
Explanation:
HURRY!!!! The science of classifying organisms based on features they share is called _____.
A. the phylum system
B. the domain system
C. classification
D. taxonomy
Answer:
Taxonomy
Explanation:
Taxonomy is science centered on classification of species.
Answer:
Taxonomy
Explanation:
30 POINTS!!!
if anyone knows the levels of classification for blue jays, robins, cardinals canaries and pelicans, YOUR HELP WOULD BE APPRECIATED!!
Answer:
Please refer to the attachments !!!
hope it helps !
The Blue Jay belongs to the animal kingdom (Animalia) and the phylum chordata (Chordata) since it is an animal with a spinal cord. The American Robin is also a member of the animal kingdom (Animalia) and the phylum chordata (Chordata).
Given that it is an animal with a spinal cord, the Blue Jay belongs to the phylum chordata (Chordata) and the animal kingdom (Animalia).
It belongs to the Aves class because it is a bird. The Blue Jay belongs to the Passeriformes order of birds, which also contains perching birds. It belongs to the Corvidae family, which includes the crows. Cyanocitta is the genus and cristata is the particular species.
The American Robin belongs to both the phylum chordata (Chordata) and the animal kingdom (Animalia). It belongs to the Aves class because it is a bird.
The order Passeriformes, which contains perching birds, includes the American Robin. It belongs to the Turdidae family, which includes thrushes. Turdus is the name of the genus, and migratorius is the particular species.
The Northern Cardinal is a member of the animal kingdom (Animalia) and the phylum chordata (Chordata), just like the other species. It belongs to the Aves class because it is a bird.
The Northern Cardinal belongs to the Passeriformes order, which is made up of perching birds. Cardinals make up their family, the Cardinalidae. Cardinalis is the name of the genus and the particular species.
The canary is a member of both the phylum chordata (Chordata) and the animal kingdom (Animalia). It belongs to the Aves class because it is a bird.
The order Passeriformes, which contains perching birds, includes the canary. It belongs to the Fringillidae family, which includes finches. Serinus is the name of the genus, and canaria is the particular species.
Despite not having a distinct species name, the pelican is a bird that belongs to the phylum chordata (Chordata) and animal kingdom (Animalia).
It belongs to the Aves class because it is a bird. The order Pelecaniformes, which includes pelicans and connected species, is where pelicans are categorised. Their genus name is Pelecanus, and they are members of the Pelecanidae family.
Thus, these classification assist scientists in organising and classifying various species in light of their evolutionary connections and similar traits.
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