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vaieri [72.5K]
3 years ago
6

"Scientific knowledge builds upon previous knowledge."

Biology
1 answer:
NikAS [45]3 years ago
5 0

<span>The answer is C. This is because the discovery of the cell and its organelles began with the discovery of the microscope in the 17th century. As powerful microscopes were developed over time, the cell organelle become discover-able by different scientists. As other developments emerged, they enabled tagging of elements, hence monitoring of biochemical pathways also became possible.</span>

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Answer:

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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
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Answer:

a or d

Explanation:

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maw [93]

Answer:

I'm more then sure it is A but let my know it im wrong if i am sorry :)

Explanation:

4 0
2 years ago
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3 years ago
Which of the following is formed during the light-dependent reaction of photosynthesis? ATP Carbon dioxide Glucose Water
lukranit [14]

Answer:

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5 0
2 years ago
Read 2 more answers
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