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Llana [10]
2 years ago
12

Help I’m being timed

Biology
1 answer:
Alexus [3.1K]2 years ago
8 0

Answer:

birds and grasses

Explanation:

because without the birds the grasshoppers would over populate and without grass they would die because they would have no food

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svetlana [45]

The expected phenotypic ratio for a cross between two individuals that are heterozygous for a given trait is 3:1.

<h3>What is Phenotype?</h3>

This is referred to the physical characteristics of an organism such as the size, shape etc.

When two heterozygous traits are crossed:

Rr ×  Rr ⇒ RR Rr Rr rr

The ratio is therefore 3:1 of the dominant to recessive phenotype.

Read more about Phenotype here brainly.com/question/22117

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Please I need the answer ASAP !!!!
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Producers are primary consumers and it gets 10 %
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Read each description below and determine whether or not it describes a function or property of cerebrospinal fluid. Identify wh
Ostrovityanka [42]

Answer:

Produced by the choroid plexus -T.This is the major secretion site.It is also produced in smaller quantities in the interstitial compartment.

Blocks blood toxins from brain tissue-F, that is the job of  the blood brain barrier(BBB).

Supplies oxygen to the brain tissue-T.This gas is dissolved  in the CSF together with CO2 for distribution among nervous tissues by the CSF

Maintains the concentration of glycine surrounding the brain-T

Found in the ventricles of the heart and brain-False,it does not reach the heart ventricles.This are occupied by blood.

Prevents concussions-T

Produces antibodies in response to antigen exposure in the brain tissue-False.These are produced by the B-cells, not by in the CSF,based on the  specif antigen stimulation.

Effectively decreases the brain's weight-T It reduces the weight of the brain.This is done by the buoyancy it provided for the brain.

Compared to levels in the blood plasma, the CSF is higher in glucose-F.This is wrong, the glucose of the blood plasma is higher.But equal sodium ion,more chloride in CSF, and less protein.It s levels is a relefection of blood glucose.Although it may lag 2-4hrs in the CSF.

It prevents concussion,(T)and and the contraction of cardiac muscles propels its movement(T).

Explanation:

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What do you think happens to a fish’s behavior in cold climates during the winter? Explain your answer.
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Tcecarenko [31]

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B. Replanting trees in deforested areas.

4 0
3 years ago
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