The Nucleus of a cell carries the genetic material, organized into structures known as chromosomes. Each chromosome contains many genes, which are the main units of heredity.
Explanation:The part of a cell that carries the genetic material is the Nucleus. The nucleus contains most of the cell's genetic material in the form of multiple linear DNA molecules organized into structures called chromosomes. Each chromosome carries a lot of genes, the basic physical and functional units of heredity.
Genes are distinct sequences of nucleotides forming part of a chromosome, the order of which determines the order of amino acids within protein molecules. Cell membrane, cell wall and chloroplast do not carry genetic material.
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Which of those methods of waste management is most likely to produce air pollution
I guess its D because when you burn stuff the smoke goes into the air
Burning in an incinerator is the main cause of air pollution, and this method of waste management is hazardous, hence option D is correct.
What is incineration?The method of burning solid wastes in a big furnace at a very elevated temperature whereby making ash is called Incineration.
Incineration is the methodology of igniting hazardous materials at temperatures high enough to eradicate impurities. Incineration is run in an “incinerator,” which is a kind of furnace conceived for steaming hazardous materials in a blast section, it is a kind of container that use fuel concern to generate heat and burns the waste
It is a waste therapy process that includes the discharge of organic substances managed in waste materials.
Therefore, burning in an incinerator is the correct option.
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If a bunch of grapes represents a molecule, what does each grape in the bunch represent?
A cell
A tissue
An atom
An organ
The answer is an atom
Answer:
an atom
Explanation:
i just finished it ;)
As used in biology, the term “population” refers to the
A group of interacting individuals belonging to one species and living in same geographical area
in biology, a population is the number of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding
Our solar system lies in
A)
the central ring of the Milky Way.
B)
one of the spiral arms of the Milky Way.
C)
in the galactic center of the Milky Way.
D)
outside the spiral arms of the Milky Way.
Our Solar System, including Earth, is located in one of the spiral arms of the Milky Way galaxy, specifically the Orion Arm. We're not at the galactic center or the central ring, nor outside the spirals. This location helps preserve life on Earth by reducing exposure to hazardous cosmic radiation.
Explanation:The Solar System, including our Earth and other planets, is situated in one of the spiral arms of the Milky Way galaxy, more specifically in the outer part named the Orion Arm. It is not at the galactic center or the central ring of the Milky Way. We are also not situated outside the spirals of our galaxy.
This spiral arm is filled with gas, dust, and a number of stars. Our position in the galaxy is a key factor in preserving life on Earth because residing in a less dense part of the galaxy reduces our exposure to potentially hazardous cosmic radiation.
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describe how lichen are used to indicate air quality
Lichens are composite organisms in which a single species of fungus (mycobiont) lives symbiotically with one or more algal species (phycobionts), some of which may be nitrogen (N) fixing (cyanolichens), e.g. members of the blue green algae. The fungus provides structure and protection for the algae which reciprocates, providing energy and assimilates, via photosynthesis. Many secondary metabolites are synthesised by the fungus, which are unique to lichen symbioses.
In Europe lichens have been used as sensitive bioindicators of air quality for more than a century. As with most vegetation, lichens show a range of sensitivities to pollutants. Not all lichens are sensitive to a particular pollutant, some can be remarkably tolerant. Among lichens are species that are sensitive to sulphur, nitrogen, acidity, halogens (e.g. fluoride), heavy metals and ozone.
What is gradualism? When is it most likely to apply?
Gradualism refers to the theory that evolution occurs through slow and steady changes, while punctuated equilibrium involves long periods of stability interrupted by rapid changes. Gradualism is expected in stable environments, whereas punctuated equilibrium may follow events like mass extinctions.
Gradualism in Evolutionary Biology
Gradualism is the theory that evolution occurs through a process of slow, steady, and gradual change. This concept implies that new species arise from the accumulation of small, incremental modifications over vast periods of time. Gradualism is most likely to apply in situations where environmental conditions are relatively stable and selection pressures change slowly, allowing for these small changes to accumulate into significant differences over time.
On the other hand, the punctuated equilibrium model of evolution describes periods of relative stasis in species, interrupted by bursts of rapid change. These bursts often occur due to significant environmental changes or isolation events that trigger speciation. In the context of the extinction of the dinosaurs, it's predicted that the punctuated equilibrium model would follow, as such a massive extinction event likely caused rapid environmental changes that could have led to the rapid evolution of new species.
While the concepts of gradualism and punctuated equilibrium may seem opposed, they are not necessarily mutually exclusive. The differences often come down to the time scale and granularity with which evolutionary change is studied. Disagreements about speciation models do not threaten the overarching theory of evolution by natural selection, which is supported by extensive scientific research.
Explain the difference between prezygotic isolating mechanisms and postzygotic isolating mechanisms.
Prezygotic and postzygotic isolating mechanisms prevent interbreeding between different species. Prezygotic isolation occurs before fertilization, including mechanisms like habitat isolation and temporal isolation. Postzygotic isolation happens after fertilization, including mechanisms like reduced hybrid viability and reduced hybrid fertility.
Explanation:Prezygotic and postzygotic isolation mechanisms are both part of what scientists call reproductive isolation, which prevents different species from interbreeding. However, they operate at different stages of the reproductive process.
Prior to fertilisation, zygotic isolation takes place. It includes mechanisms like habitat isolation, temporal isolation, behavioural isolation, mechanical isolation, and gametic isolation. For instance, two species might live in the same area, but breed at different times of year (temporal isolation), or they might have different courtship behaviours that prevent them from successfully mating (behavioural isolation).
Postzygotic isolation, on the other hand, takes place after fertilization. It includes mechanisms like reduced hybrid viability, reduced hybrid fertility, and hybrid breakdown. For instance, even if two different species do mate and produce offspring, those offspring might be weak and unable to survive (reduced hybrid viability), or they might be healthy but sterile, unable to have offspring of their own (reduced hybrid fertility).
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the geographic isolation of two population of species tends to increase differences between their gene pools because it _.
it prevents interbreeding between the populations.
Column D: Which organism(s) eat this organism? (There could be many, but just list one or two.)
cactus
sage brush
annual flowers
ants
beetles
chuckwalla
kangaroo rats
tarantulas
scorpions
common king snake
Gila monster
fox
hawk
turkey vulture
bacteria
what are large molecules made up of small molecules called
Answer:
macromolecule is created by small molecules called monomers.
Pls help answer these❗️❗️❗️(Don’t answer if you aren’t entirely sure)
1) The following table describes some biotechnological processes. (I’ll submit it below)
Which biotechnological processes are described in the table?
A. Both processes describe cloning
B. Both processes describe genetic engineering
C.Process one describes cloning and process two describe artificial selection
D. Process one describes artificial selection and process two describes cloning
2) A certain trait occurs as a continuous variation. What is the pattern of inheritance for this trait?
A. Codominant
B. Dominant
C. Polygenic
D. Recessive
3) In a species of mice a single gene determines fur color. The two alleles for fur color are black (B) and white (W). Which of the following is most likely true if the alleles for fur color show codominance?
A. The BW mice would be black
B. The BB would be white
C. The BW mice would have black and white patches
D. The WW mice would have black and white patches
4) The trait of height in humans shows continuous variations as it’s controlled by several genes. Which inheritance pattern does height in humans represent?
A. Homozygous
B. Heterozygous
C. Multiple alleles
D. Polygenic
Answer:
1. C. Process one describes cloning and process two describe artificial selection
Through cloning a genetically identical individual is obtained from a single individual. Through artificial selection a hybrid between two individuals with desirable traits is obtained.
2. C. Polygenic
A trait that has a continuous variation has a polygenic inheritance pattern as it is controlled by multiple genes.
3. C. The BW mice would have black and white patches
Codominant genes will produce an individual with an intermediate phenotype as both alleles are simultaneously expressed in the heterozygote.
4. D. Polygenic
Polygenic inheritance occurs when two or more genes determine a trait that has a continuous variation. Each gene has a small effect, but all together have a cumulative effect. Examples of such patterns are height, sking color, eye color, weight etc.
What is the genetic contribution to the onset of autism?
Answer:
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by very early onset of dysfunction in social communication and interaction, repetitive behavior, and limited interest. It is now believed that ASD is a result of complex gene-environment interactions, with strong and clear genetic influences. Hope this helps!
The onset of autism is significantly influenced by genetics, with high concordance rates observed in identical twins. Various gene mutations and environmental factors also contribute to the development of ASD.
The onset of autism spectrum disorder (ASD) is significantly influenced by genetics.
Research has shown high concordance rates for autism in monozygotic (identical) twins, ranging between 60%-90%, compared to much lower rates of 5%-10% in dizygotic (fraternal) twins and siblings. This suggests a strong genetic component. Studies have identified various genes and gene mutations involved in autism, particularly those crucial for the formation of synaptic circuits that facilitate communication between different brain regions. For example, de novo mutations, which are spontaneous and not inherited from either parent, have been frequently linked to cases of autism.This is two questions
1)What actions help prevent air pollution?
2)How does air Pollution affect human health?
1) Many things can help lessen or prevent air pollution. We can plant more trees to help rid the atmosphere of the harmful gasses our factories release. We can reduce the number of smoke-emitting factories. Use solar power more too.
2) Air pollution affects our health in many ways. Just as smoking a cigarette can pose major health implications, so can breathing the polluted air that is constantly being release by all our cars and other machinery. Our life-spans can be shortened by the pollution, and more diseases could be caused to outbreak by harmful chemicals in the atmosphere.
Hope this helps :)
in which of the following massive data bases would you expect to find the daily temperature of the water in a specific coastal region
a. an oceanic and atmospheric data base
b. A comparative toxicogenomic database
c. A whole genome database
d. A protein structure database
A (sorry if wrong) !
the term used for a geographic location's height above sea level is?
The geographic term is elevation
Which is an organic molecule?
a.
hydrochloric acid (HCl)
b.
methane (CH4)
c.
water (H2O)
d.
carbon dioxide (CO2)
e.
oxygen (O2)
The answer to this is B. Methane
Select the correct answer from each drop-down menu. Complete the statement with correct answers. A is a check that you have written that you cannot pay due to
Answer:
bounce check and insufficient funds
Explanation:
A is a check that you have written that you cannot pay due to bounced check or insufficient funds.
What is a bank reconciliation?A bank reconciliation mainly computed by an accountant, gives the difference between the balance in relation to the bank statement and the cash balance with respect to the accounting records of the depositor in a particular financial institution.
In Financial accounting, a bank statement can be defined as an official summary or list of financial transactions, which typically comprises of the amount of money that has been paid into or withdrawn from an account by an individual or business entity over a specific period of time.
Bank customers are advised to frequently reconcile their records with bank statements in order to prevent non-sufficient funds (NSF) checks.
Therefore, A is a check that you have written that you cannot pay due to bounced check or insufficient funds.
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A(n) ____ can take place only when the moon is in the new moon phase
Im not completely sure but I think the answer is Solar Eclipse.
Sorry if Im not correct btw
In the development of dogs, monkeys and dolphins, nourishment and oxygen are provided by the mother to the fetus through the
A:) Excretory system
B:) Cloaca
C:) Placenta
D:) Both (B) and (C)
i believe the answer is C, Placenta
Hi, It’s C the placenta it gives oxygen to most mammals
When your ask the question, are there many dead links on the page? Which aspect of the web resource are you evaluating
Answer:
On asking question, we are evaluating the reliability of the web resource is been evaluated.
Explanation:
A reliable source is the one that gives you thorough explanations along with well reasoning and discussion that is based on solid reasoning. On asking a question such sites are opened like scholarly articles, professional books and articles, blogs etc. that are reliable sources of material.
what is the function of mRNA?
Messenger RNA (mRNA) carries the genetic information copied from DNA in the form of a series of three-base code “words,” each of which specifies a particular amino acid. Transfer RNA (tRNA) is the key to deciphering the code words in mRNA
Answer: It acts as the intermediate between the genetic information of DNA and amino acid sequence of protein.
Explanation:
The mRNA contains the codons that are complementary to the sequence of the nucleotide on the template strand of the DNA.
Then with the help of the ribosomes and tRNA it directs the formation of amino acids.
It carries the genetic information hence, called as messenger RNA. The molecule of the mRNA is made of single strands of the adenine, cytosine, guanine and uracil kept together by sugar phosphate backbone.
Helppppppp
Before scientists determined that deer were the cause of the trillium decrease, what did most people believe was the cause?
A, Most people thought that trillium was not getting enough sunlight in the forest. B, Most people thought that trillium was not getting enough water in the forest.
C, Most people thought that garlic mustard was crowding out trillium in the forest. D, Most people thought that garlic mustard was eating the trillium in the forest.
A. Most people thought that trillium was not getting enough sunlight in the forest.
Explanation – Scientists used to believe that the population of trillium decreased because there were not enough sunlight to reach these plants. Later, it was found that deer used to eat the flowers of trillium plant that led to the decrease of its population.
The seed of the trillium plant is very nutritious and hence consumed by the deer. Because of this, trilliums were found to be unlikely to recolonize local areas on their own.
Answer:
Most people thought that garlic mustard was crowding out trillium in the forest.
Explanation:
How is ground water formed?
ground water forms when water from the surface seeps into the ground
It is formed by the rain. Or if it doesn’t rain then it’s formed by variations of components.
some individuals produce more offspring than others. which term describes this odservation?
Differential reproduction.
please help me asap!!!
D. Absorption
This is because when food materials are broken down the nutrients must be absorbed by the body.
Rain forests cover just 6 percent of the Earth’s land surface, yet they contain _____ percent of Earth’s species. 30 60 70 40
Rain forests cover just 6 percent of the Earth’s land surface, yet they contain 70 percent of Earth’s species.
70 percent of Earth’s species
Is it correct????????????????????
Yes your answer is correct I think
What is happening at point a?
the population size is at 300 and yeah
At point A the population is at 300 and still inclining by a lot.
Hope this helps!!
How do Pesticides Affect Biodiversity?
Pesticides have a major effect on biological diversity, alongside habitat loss and climate change. They can have short-term toxic effects on directly exposed organisms, and long-term effects can result from changes to habitats and the food chain. Policy intervention and greater coherence are urgently needed!
Organic compounds consisting of various compounds of sugar are generally called
Answer:
The correct answer will be- carbohydrates
Explanation:
The carbohydrates are one of the four abundant biomolecules which are composed of the polymers of the sugar molecules.
The carbohydrates play important roles in the organism from a structural entity to storage functions. The carbohydrates formed of one type of sugar are known as monosaccharide, of two sugars are known as disaccharide and the more than two types are known as polysaccharides.
Thus, carbohydrate is the correct answer.