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dsp73
3 years ago
5

Of the 200 to 400 million sperm cells released in a typical ejaculation, approximately how many do you think will reach the ovum

?
Biology
1 answer:
Travka [436]3 years ago
5 0
Only 200 out of 2 000, 000 sperm cells reach the ovum. And only one (in exception to very rare cases of two) sperm cells actually participate in the process of fertilization. In comparison, an average female only produces 400 of egg cells during their lifetime, but the eggs cells are significantly larger than sperm cells.
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The mechanism by which the end product of a metabolic pathway inhibits an earlier step in the pathway is most precisely describe
defon

Answer:

The mecanism is termed as feedback inhibition.

Explanation:

In an enzyme catalyzed sequential reaction the end product of that reaction inhibits the activity of the activity of the enzyme catalyzing the ist step This type of  regulation is called Feed back regulation or feedback inhibition.

               The main function of human body is to maintain the homeostasis of the all the components it contains.When the end product of an ongoing enzyme catalzsed sequential reaction is produced in a high lebel at that time to maintain its own homeostatis that end product inhibits the functioning of the enzyme catalzsing the ist step of that biochemical reaction.

For Example Cytidine tri phosphate inhibits the activity of aspartate transcarbamoylase catalyzing the de novo biosynthesis pathway of pyrimidine metabolism.

3 0
3 years ago
The term gender refers to:
Tom [10]

Answer:

a. cultural categories related to the identities and roles of men and women

Explanation:

Gender can be defined as that which identifies and differentiates men and women, that is, male and female. According to the “traditional” definition of gender, it can be used as a synonym for “sex”, referring to what is proper to males as well as females. However, from the point of view of the social sciences and psychology, mainly, gender is understood as what socially differentiates people, taking into account the historical-cultural patterns attributed to men and women, so we can Consider that the letter A, is the answer to your question.

7 0
3 years ago
Mitochondria, the organelles involved in cellular respiration, can also generate chemicals called reactive oxygen species (ROSs)
ch4aika [34]

<u>Answer:</u>

Mitochondria, the organelles involved in cellular respiration, can also generate chemicals called reactive oxygen species (ROSs). ROSs can damage mitochondria. Damaged mitochondria generate more ROSs than healthy mitochondria. This is an example of a positive feedback mechanism

The reactive oxygen species that are given out by the mitochondria during cellular respiration are the major cause of aging. Though this has a lot of negative effects but this also has a small amount of positive effects such as the start of angiogenesis or cell proliferation.

5 0
3 years ago
The difference in an area with high concentration and an area with low concentration is called:.
Musya8 [376]

The difference in an area with high concentration and an area with low concentration is called concentration gradient.

<h3>What is concentration gradient?</h3>

Concentration gradient refers to the difference between the concentrations of two solutes in a solution.

A solution usually contains an area or region with higher concentration and an area with lower concentration.

The difference between these two areas of different concentrations is referred to as a concentration gradient.

Learn more about concentration gradient at: brainly.com/question/13050811

#SPJ1

6 0
2 years ago
PLS DO THIS WILL GIVE BRAINLYNESS I NEED THIS DONE ASAP
blsea [12.9K]

Answer:

A.

Explanation:

8 0
3 years ago
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