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Serga [27]
3 years ago
11

How do mutations contribute to genetic variation?

Biology
1 answer:
ioda3 years ago
4 0
When a mutation has an effect that helps a species adapt to an environment, and specimens of both genders have it, it will end up taking over, causing evolution to gradually happen.
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What is the Important chemical that contains<br> Nitrogen which is vital for all living<br> things
otez555 [7]

Deoxyribonucleic acid or DNA is a chemical that contains nitrogen and is very important for living organisms. It plays and important role in making up the genetic constitution of the cell. It is hereditary and passes from one generation to another.

DNA is double stranded helix which coils and binds to non-histone proteins to pack inside the nucleus of the cell. Every living organism contains DNA or RNA as a genetic material.

5 0
3 years ago
How do heterotrophs get their source of glucose?
Zolol [24]

Answer:

By consuming plants and animals.

Explanation:

Since plants are autotrophs, they absorb the sun's energy through photosynthesis and make glucose. herbivores (plant eating heterotrophs) then consume these plants and gain energy from the glucose and further up the food chain carnivores consume herbivores and also gain a bit of glucose from them.

8 0
3 years ago
How might the human population's growth rate change in the future?
Artist 52 [7]

Answer:

The UN projects that the global population increases from a population of 7.7 billion in 2019 to 10.9 billion by the end of the century. By that time, the UN projects, fast global population growth will come to an end.

Beneath the global level, there are of course, big differences between different world regions and countries. While in some regions the world population will likely grow rapidly for the coming decades other regions will continue to see declining population numbers.

Global population growth is determined by the number of births and deaths. Improving health is increasing the size of the population as it is decreasing mortality. The countervailing trend are falling fertility rates – the trend of couples having fewer children is what brought rapid population growth to an end in many countries already, and what will bring an end to rapid population growth globally.

The global population growth rate has already slowed down considerably: It reached its peak at over 2% in the late 1960s and has been falling since.

The UN projections for the global population growth rates, which have been produced since the 1950s, have a good track record in projecting the size of the global population.

While the UN projections are most widely know there are other very carefully produced projections. The demographers of WC-IIASA model what will happen according to different scenarios and make clear that the population growth rate tomorrow depends on what we do today. Rapid progress in getting children and especially girls into schools will result in a much smaller global population.

The biggest disagreement between different projections is concerning the future of Africa. While the UN projects a 3.5-fold increase of the population of Africa, other researchers find a much smaller increase more likely.

Explanation:

here try this

6 0
2 years ago
Read 2 more answers
if a person pulls on a cart to the right with a force of 10 Newtons and another person pulls to the left with the force of 3 New
Digiron [165]

Answer:

10N - 3N = 7N

It's been awhile since I've had to do this, so I hope this is the correct way to get the answer

Hope this helps though!

Explanation:

7 0
3 years ago
yeast is eukaryotic organism that has 32 chromosomes. its dna has been sequenced and has been determined to have 6000 genes. app
IceJOKER [234]

Answer:

The correct answer would be 187-188 genes.

The chromosome is defined as a thread-like structure formed by deoxyribonucleic acid (DNA ) and associated proteins.

It carries the genetic information an organism in the form of genes.

Genes refer to the coding sequence of the chromosome which specifically codes for the amino acid sequence of a protein.

The genome of the yeast consists of 32 chromosomes which have 6000 protein-coding genes.

As these chromosomes are equal in size that is, each contains the equal length of the DNA.

Thus, hypothetically we can say that each chromosome consists of 187-188 chromosomes (6000/32 = 187.5)

6 0
4 years ago
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