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shusha [124]
3 years ago
7

In order for most chemical reactions to occur in living things what inorganic substance must be present?

Biology
1 answer:
sasho [114]3 years ago
4 0

i would say oxygen and hydrogen

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D

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Question 4
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In eukaryotes, thousands of chemical reactions are able to take place in  separate compartments called organelles.

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Organelles are specific cellular structures that are the means of compartmentalizing the various functions that occur within cells.

Examples of organelles and their functions are:

- <u>Nucleus</u>: contains DNA and in it occur the replication of this molecule and its transcription into RNA.

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The organelles are then the structures that allow the development of the multiple functions that a cell has.

The other options are not correct because:

  • <em><u>Bacteria</u></em><em> is a prokaryotic organism. </em>
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2 years ago
In your own words list Kepler's three laws of planetary motion
Kazeer [188]

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A(n) ________ is a hard outside covering that is used for protection and prevents the inner body area from drying out.
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The cuticle is the most exterior layer of arthropods' tegument, and its principal function is to protect the body and avoid dehydration. Option C is correct. Cuticle.

<h3>What is the cuticle?</h3>

The cuticle is the most exterior layer of arthropods' tegument. It is secreted by the epidermis and develops right over it.

It is composed of two main layers,

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The cuticle is mainly made of chitin, and its function is to protect the organism's body and avoid dehydration.

Because it avoids dehydration it is believed that arthropods had such an evolutive and adaptative successful in their transition from water to the land.

The cuticle also provides support to the body and a muscle attachment surface.

The correct option is C. Cuticle

A _<u>Cuticle</u>_ is a hard outside covering that is used for protection and prevents the inner body area from drying out.

You can learn more about cuticle at

brainly.com/question/3997730

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