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11Alexandr11 [23.1K]
3 years ago
7

Just wanted to know what is ''B''(given in the picture).

Biology
1 answer:
SOVA2 [1]3 years ago
6 0
I'd think that'd be the Myelin Sheath  
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For fertilization to occur in humans, only one sperm is needed to weaken the barrier that surrounds the egg.
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Answer:

False

Explanation:

Approximately 200 out of 200 million sperms ejaculated during intercourse reach the general vicinity of the egg.  They sperms must undergo capacitation during which dilute inhibitory factors fluids of the female reproductive tract weaken the membrane of the sperm head so that head of the sperm can be broken easily when it came in contact with the egg.

The first sperm to reach an egg isn’t the one to fertilize it because the egg is surrounded by a gelatinous membrane called the zona pellucida. Outside this layer, a layer of small granulosa cells also present.

Therefore, it requires numerous sperm to clear a path through these barriers before one of them can penetrate the egg and fertilize it.

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3 years ago
A tumor is caused by ____________.
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Explanation:

In general, tumors occur when cells divide and grow excessively in the body. Normally, the body controls cell growth and division. New cells are created to replace older ones or to perform new functions.

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The limiting factor was pure water
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How long does it take the moon to go through all of its phases
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Answer:

27 days

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Based on the assumption that individuals seek to maximize the return (in calories and nutrients) on their labor,<u> age and gender </u>is a model used by anthropologists to how food collectors decide which animals and plants to hunt or collect and which to ignore.

<h3>What is the meaning of "Labor"?</h3>

In its most basic sense, the term "labor" refers to employment that requires heavy manual labor, typically performed by unskilled laborers. However, the term "labor" in economics refers to manual labor. It also requires mental effort. In other words, work that is done physically or mentally in exchange for payment is considered labor.

<h3>What exactly does an anthropological do?</h3>

When it comes to human origins, physical, social, linguistic, and cultural development, behavior, and the cultures, organizations, and institutions that people have built over time, anthropologists study, assess, and help shape public policy.

Learn more about Labor here:-

brainly.com/question/606333

#SPJ4

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