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Flura [38]
3 years ago
6

Why is it warner on Jun 21 St?​

Biology
2 answers:
Alik [6]3 years ago
8 0

Answer:

June 21st is the date where there is the maximum amount of direct sunlight in the Northern Hemisphere (meaning that there's the longest period of solar radiation reaching Earth and warming it).

OleMash [197]3 years ago
4 0

Answer:

because the son rotates closer during sumer

Explanation:

hope that helped

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4. There are a variety of receptors and second messenger systems in cells that in many cases exhibit cross-talk with each other
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Answer:

These 3 receptors are different from each other. They do differ from each other by their location and function.

1. Testosterone receptor :  It is an Androgenic receptor

2. Ferrotransferrin receptor :  It acts as an element-binding protein which is iron responsive.

3. Fibroblast growth factor :  It acts as a growth factor.

Explanation:

1. Testosterone :

Location- Xq 11-12 in the X chromosome.

Function-  

  1. maintains male skeletal integrity by osteoblast and osteocytes.
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2. Ferrotransferrin :

Location- chromosome 3q21

Function-

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3. Fibroblast (growth) :

Location- chromosome 4p16.3

Function-

  1. helps in bone development.
  2. helps in bone growth maintenance by ossification.

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3 years ago
Which product forms from the reaction between nitrogen (N)
scZoUnD [109]

Answer:

None of the above

Explanation:

<h3>Because as N has the valence of 3 when it reacts with Cl of 1 as valence they will form NCl3</h3>
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3 years ago
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Describe how a giraffe meets the basic challenges of life
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Which property of water is most directly responsible for the ability of sweat to lower body temp?
Marina86 [1]
Absorption of heat by breaking down hydrogen bonds
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If a horse and zebra breed to produce a sterile horse.____
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Biogeographic isolation is the separation of organisms of a species through geographical or biological forces.

Explanation:

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