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kipiarov [429]
3 years ago
12

What is the significance of chitin in arthropods? A. Chitin is a storage carbohydrate that forms their exoskeleton. B. Chitin is

a structural carbohydrate that forms their exoskeleton. C. Chitin is a protein that forms their exoskeleton.
Biology
1 answer:
Kay [80]3 years ago
6 0
C is the answer I believe
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You perform an experiment on two plants of the same species to find out what soil affects their growth the most. Both plants are
Nezavi [6.7K]

Answer:

Independent Variable - Soil, Dependent Variable - Height, Control Variable - Sun and Water

Explanation:

First we should define what the variables in the experiment are.

Independent variable is the aspect of the experiment that has a different value for each subject in order to find out how it affects the dependent variables.

Dependent variable is the variable that is kept under observation and recorded by the experimenters in order to track the changes and define its relationship with the other variables/parameters.

Control variable is the variable that is kept constant intentionally by the experimenters to be able to define the relationship between the other variables more clearly and easily.

In the example given in the question, there are one of each variable mentioned above which are, according to the definitions;

  • Independent Variable - The Soil
  • Dependent Variable - The Height Of The Plant
  • Control Variable - The Amount of Water and Sun Exposure

I hope this answer helps.

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Systolic pressure is the pressure in the arteries when the ventricles are contracting, while diastolic pressure is the pressure
Nostrana [21]
I believe this would be true
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Who used to collect mosquitos for Roland Ross?
saul85 [17]
George MacDonald helped collect and build models of mosquitoes for Sir Ronald Ross. Hope this helps :).   <span />
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What are some functions of cerebrospinal fluid?
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Protects brain and spinal cord from trauma, as well as supplies nutrients to nervous system tissue. It also removes waste from cerebral metabolism.

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What's true about all three of the first babies?
san4es73 [151]

Answer:

B. They all have the same genes but some have hair and some don't

Explanation:

Type I genes tend to be involved in immune response or sensory receptors while type III genes are involved in cell to cell signalling and type II genes are a complex mix of all three types.

6 0
2 years ago
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