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kkurt [141]
3 years ago
13

GIVING BRAINLIEST!!!

Biology
1 answer:
astra-53 [7]3 years ago
5 0

Answer: C

Explanation: The process that occurred in the lake is natural selection. In the presence of an external environmental influence such as pollution, only the trouts that were fit to survive or in other words those that have the alleles that help in adapting to the new conditions live and increased in numbers. In such a case, one can say the fittest of the organisms survived and the corresponding allelic frequency in that population increased over time. The organisms carrying the other alleles died due to pollution and hence the overall frequency of alleles change.

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Why would a Nonsense mutation be less damaging if it occurred at the end of the gene rather than the
kari74 [83]
Nonsense mutations make stop codons. If the mutation is towards the beginning of a gene, then the protein that gets created will be cut short and not function properly. But if it was towards the end, there is still a chance that the protein will still be able to work.
8 0
3 years ago
What modern day practice helps prevent an inadequate production of thyroid hormones?
Mama L [17]

Iodized salts helps to prevent an inadequate production of thyroid hormones .

<h3>What is iodized salts ?</h3>

Iodized salt is a table salt . it is a mixture of very little amount of sodium iodide and potassium iodide .

It helps to prevent iodine deficiency .

It is a micronutrient and dietary mineral that is naturally present in the food supply .and also it is a heavy element .generally found near sea coasts .

Iodine deficiency disease includes hypothyroidism .

<h3>What is hypothyroidism ?</h3>

It occurs due to less secretion of thyroid hormone caused by iodine deficiency .it causes stunted growth . it shows low rate of metabolism .

Hypothyroidism includes diseases like myxoedema or gull's disease , cretinism .

Inadequate supply of iodine in diet causes enlargement of the gland known as simple goitre.

<h3>Thyroid hormones :</h3>

It is secreted by endocrine glands known as thyroid gland . it includes two types of hormones known as thyroxine and calcitonin .

Thyroxine is an iodine containing hormone known as tetra-iodothyroxine(80%) and tri-iodothyroxine (20%).

calcitonin is secreted from thyroid gland and is polypeptide hormone .

Learn more about thyroid hormones here:

brainly.com/question/9251938

#SPJ4

4 0
1 year ago
Most radially symmetric animals are aquatic.
Molodets [167]
The accurate answer is

True. <span>Most radially symmetric animals are aquatic.

An aquatic animal lives in water
They breath  the same oxygen as we do
For example a whale is an aquatic

Glad to help :)

</span><span>
</span>
7 0
3 years ago
100 points and brainliest!!
Savatey [412]

Answer:

owo i tried

Explanation:

B.

C.

need the attachment

still need the attachment

A.

D.

i dont remebr

A.

A.

C.

srry if im wrong!

3 0
3 years ago
The condition of a constant internal environment, or balance, is known as______________.
Alenkinab [10]
The relative balance within an optimal range also known as homeostasis
6 0
3 years ago
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