Paragraph about how genetic variation and environmental pressures can cause a change in population

Answers

Answer 1

Answer: Hmm.. good one. :)

1.) Genetics are what can create features or behaviors in animals or other living organisms. So this can cause a change in population because say one species of bird was born by two slightly different parents, now it has both genetics from both. This can be good or bad. Say the dad's genetics sucked but the mother's genetics were good. This bird might be better at surviving or better at being prey.

Environmental Pressures: 1.) If rabbits die because of a disease, their predators will become hungry. The predators might go down in number too and die as well. If anything in nature goes wrong, it may affect a population to either increase or decrease.

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a single strand of dna helix has a code ataggc. which would be the complementary code on the other strand of the helix
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You have batch of pea plants with purple flowers that you grew by crossing plants that had purple flowers (PP) with plants that had white flowers (pp).Which will be expressed in this batch of pea plants? A. purple flowers (recessive). B. white flowers (dominant). C. purple flowers (dominant). D. white flowers (recessive).

Which of the following monomers would be used to make the double helix of a DNA molecule?

Answers

The monomers that would be used to make the double helix of a DNA molecule are the phosphorus+ sugar+ base. The correct option is A.

What is DNA?

DNA is a genetic material that is present in the nucleus of the cell. It is present in all plants and animals. This is the important material in the body that makes every individual unique.

DNA is made up of three substances. They are phosphorus sugar, which makes the backbone of the helix. The bases are present in between the helices, they are joined by hydrogen bonds.

There are two hydrogen bonds present between adenine and thymine. There are three hydrogen bonds present between guanine and cytosine. The bases keep the two helices together.

Thus, the correct option is A, phosphorus+ sugar+ base.

To learn more about DNA, refer to the below link:

brainly.com/question/22499464

#SPJ5

Answer is option a would be definitely right

The sac that regulates the temperature of the testes is the ___________.a scrotum
b bladder
c seminal vesicle
d urethra
e epididymis

Answers

It is the scrotum, indeed.

Scrotum sacs that regulate temperature of testes

The offspring of a particular cross are 100 percent heterozygous for tallness. What were the most likely genotypes of the parents?Tt ´ tt
Tt ´ Tt
tt ´ tt
TT ´ tt

Answers

Answer:

Option D, TT ´ tt

Explanation:

Allele for tallnes "T" is dominant over the recessive allele "t"

The genotype of a heterozygous tall offspring will be "Tt"

When a cross is carried out between "TT " and "tt" , the following offspring are produced -

T T

t Tt Tt

All the offspring have genotype "Tt" which is a heterogyzous allele pair.

Since "T" is dominant over "t", all the alleles would be heterozygous tall.

Thus, in order to produce 100 percent heterozygous tall offspring, the cross must be carried out between "TT" and "tt".

Option D is correct

That’d be D. TT and tt

This cross would give all heterozygote offsprings.

Can someone please explain the process of the reproductive system? (I still don't get it)

Answers

The reproductive system is in females a series of veins that helps them bring new life into this world but it can only work with the other half of the system which in males is a series of veins that allows the child as semen to pass into the mother where once it has been conceived it becomes a zygote then it becomes a fetus and on to a newborn.

How does digestion convert carbohydrates into energy your body can use?

Answers

Wish I knew but I'm an idiot

What is the connection between Digestive, Circulatory, Urinary and Respiratory system

Answers

The connection between mentioned physiological system of an animal is through "Nervous System" it is the system which controls every other organ by motor neurons & sensory neurons

Hope this helps!

Through The Respiratory System, The Oxygen Enters The Body Then Is Transported As Oxyhaemoglobin To the Cells with the help of cardiovascular system.

The Cardiovascular system relates with the digestive system for an optimum heart rate. The Digestive system produces Nutrients, with the help of the Cardiovascular system transports these nutrients where it is needed.

There For, That being said, The Human Body Is reached in healthy equilibrium if all these systems work together in harmony

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