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jeka94
3 years ago
12

Someone pls help me!

Biology
1 answer:
dexar [7]3 years ago
4 0

Answer:

Cell membranes are semi-permeable, which works like a sieve that determines what enters and leaves the cells.

Explanation:

It is semi-permeable and it allows molecules to diffuse inside.

<em>Feel free to mark it as brainliest :P</em>

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Please help me, I'm stuck
Inessa [10]

From the image of the earth given, the approximate amount of insolation for 66.5°N is 12 hours (Option A). See the definition of insolation below.

<h3>What is insolation?</h3>

Radiation from the sun received in the Earth's atmosphere or at its surface is referred to as insolation. Only around 52% of this insolation makes it to the earth's surface. The remainder is absorbed by water vapor, dust, and clouds, or is reflected by the Earth's surface and dispersed by airborne particles.

Thus, understanding insolation (the quantity of energy that falls on a certain region) is critical for optimizing the output of solar panels, which absorb and convert this energy. Understanding insolation numbers can help you identify aspects like the geographic placement of solar panels and orientation to optimum production.

Learn more about insolation:
brainly.com/question/14505845

#SPJ1

6 0
1 year ago
Bear pigmentation is subject to epistasis of the B alleles by the d alleles. B (black) is dominant over b (brown). D is dominant
White raven [17]

Answer:

9/16 black, 3/16 brown, 4/16 white

Explanation:

             BD         Bd          bD         bd

BD     BBDD      BBDd     BbDD     BbDd

Bd      BBDd      BBdd     BbDd      Bbdd

bD      BbDD     BbDd      bbDD     bbDd

bd       BbDd    Bbdd       bbDd     bbdd

A punnet square can be described as a diagram which is made to predict the genotype as well as the phenotypes of the offsprings of a cross.

To study the epistatis nature of the pigmentation in bear, a punnet square was made and the results of the punnet square are shown above.

The results of the punnet square show that the cross between two bears will have the chances of producing 9/16 black bears, 3/16 brown bears and 4/16 white bears.

4 0
3 years ago
The lungs and respiratory system work closely with the ___________ system to make sure oxygen reaches all the cells of our body.
Svetach [21]
The circulatory system
 
6 0
3 years ago
Read 2 more answers
For what is the endocrine system responsible
zhuklara [117]

Hello there!!

The correct answer is Option D. Maintaing homeostasis.

Hope this helped and have a great day!! I wish you the best of luck (:

P.s, Ur a great person!!!

4 0
3 years ago
Read 2 more answers
Which kingdom is composed of eukaryotes which are mostly unicellular that can be heterotrophs or autotrophs?
In-s [12.5K]
Kingdom Protists is the kingdom that is composed if eukaryotes which are mostly unicellular and that can be heterotrophic and or autotrophic.
3 0
4 years ago
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