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WITCHER [35]
3 years ago
15

10

Biology
1 answer:
aleksandr82 [10.1K]3 years ago
8 0

Answer:

10

Explanation:

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With which portion of an epithelial cell in the stomach would food be in contact?
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b) Apical surface

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Apical surface is the portion of an epithelial cell in the stomach that food wouold be in contact with.

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Which element would you expect to have a higher electronegativity than nitrogen (N)?
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flourine ( F)

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flourine has higher electronegativity than nitrogen (N)

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Which of the following describes the role of nitrifying bacteria?
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They are microorganisms that are important in the nitrogen cycle as converters of soil ammonia to nitrates, compounds usable by plants.

Explanation:

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3 years ago
Assume that life on Earth began 3.5 billion years ago. To the nearest percent, how much of this time have anthropoids been livin
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Answer:

Anthropoids lived for approximately 0.86% of the total time.

Explanation:

  • Anthropoids are the higher developed organisms that includes apes and ape mans.
  • The age of earth is 3500 million and anthropoids lived for about 30 million years.
  • By the simple calculations we can find out the data in percent which gives us the result nearest to 0.86%.
  • That means 0.86% of 3.5 billion year is equivalent to 30 million years (time that was lived by anthropoids).
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