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Mice21 [21]
3 years ago
9

Somebody please help me.anyone with the right answer will get brainliest​

Biology
2 answers:
Sloan [31]3 years ago
7 0

the third one and the secound one

Marta_Voda [28]3 years ago
6 0

Answer: CRH - ACTH - glucocorticoid

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If a father is affected by an X-linked dominant condition and the mother is not, which children can inherit the condition?
kaheart [24]

Answer:

only females

Explanation:

In humans, sex chromosomes in males and females are different. The sex chromosomes found in humans are X and Y chromosomes. X-linked trait is a trait which is inherited on the X- chromosome. According to the question, the trait is passed on a X-linked dominant condition, which means the condition is inherited on the abnormal dominant X-chromosome that will express itself even when in an heterozygous state with a normal X-chromosome.

Hence, a father affected by the condition will have a genotype; XY while a mother that does not have the condition will have a genotype: xx (two normal x chromosomes). Since the Father can only pass his X chromosome to his daughters and never his sons, all his daughters will inherit the condition (see the punnet square in attached image).

N.B: None of the sons will inherit the condition since the mother will pass normal X-chromosomes (x) to her sons.

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3 years ago
1. How do disturbances (or catastrophes) affect ecological succession? Be as specific as possible. Right answers only.
tino4ka555 [31]

Answer:

There are two types of ecological succession:

Primary succession:

Primary succession occurs in areas which were previously devoid of life. There were no organisms living in this area before. For example, lands after new glaciers or volcano  eruptions. Firstly, microorganisms begin to habitat this land, followed by plants like lichens, shrubs etc. Finally, complex life evolved from these.

Secondary succession:

Secondary succession arises in areas where life existed before but was destroyed due to natural circumstances like flood, fire etc. Small grasses inhabit this land first which are taken over by trees over  period of time.

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3 years ago
2. Two sides of a triangle are 5 cm and 9 cm long What can be the length of its third side?​
Lorico [155]

Answer:

The third side can be any length if we don't know the value of the angle between the two known ones or the full perimeter.

Explanation:

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What is the final major checkpoint before cell division can be completed?
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The answer is the G1 checkpoint
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