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11Alexandr11 [23.1K]
4 years ago
5

What is natural selection

Biology
1 answer:
Vilka [71]4 years ago
8 0
Organisms that adapt to certain environments to survive and produce more offspring. Example: if you have black moths on a white tree, over time the black moths adapt to become white moths.
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"cell structures is the permeability layer that lets only a selective number and type of molecules into the cell?"
Montano1993 [528]

Answer: Cell membrane

Explanation:

The cell membrane has the ability to transfer the molecules from the exterior of the cell to the interior of the cell.

The cell membrane is semi permeable which means only selected molecules will pass through the cell membrane.

The molecules and substances that are synthesized inside the cell needs to be transported from inside to outside via cell membrane.

6 0
3 years ago
The renal corpuscle consists of a capillary bed called the ____________ and a capsule of epithelial cells.
pychu [463]

The renal corpuscle consists of a capillary bed called the glomerulus and a capsule of epithelial cells. The renal corpuscle is composed of two structures, the glomerulus and the Bowman's capsule. The glomerulus is a small tuft of capillaries containing two cell types. <span>It is also characterized as a cluster of capillaries around the end of a kidney tubule, where waste products are filtered from the blood. Other surfaces that separate body cavities from the outside environment are lined by simple squamous, columnar, or pseudostratified epithelial cells.The gastrointestinal tract, the insides of the lungs, and the reproductive and urinary tracts where other epithelial cells line up make up the exocrine and endocrine glands.</span>

3 0
3 years ago
If the lithosphere is resting on the asthenosphere and you put a lot of
statuscvo [17]

Answer:

Explanation:

Can you think of a solid that can flow?

You use one twice a day! Toothpaste is a solid that can flow. Is the asthenosphere made of toothpaste? Only if the

toothpaste is ultramafic in composition, and then it would only be able to flow if it were really, really hot. Still the

toothpaste analogy gives you a good image of how the asthenosphere might behave if you squeezed it!

Lithosphere

The lithosphere is composed of both the crust and the portion of the upper mantle that behaves as a brittle, rigid

solid. The lithosphere is the outermost mechanical layer, which behaves as a brittle, rigid solid. The lithosphere is

about 100 kilometers thick. How are crust and lithosphere different from each other?

7 0
3 years ago
How many things are in a plant cell​
Kipish [7]

Answer:

40 Trillion.

Explanation:

About 40 trillion!

4 0
3 years ago
Read 2 more answers
It is estimated that _______________ of human DNA encodes protein.
Komok [63]
I googled it and it said it is estimated that 5 percent of human DNA encodes protein. Not sure if it is correct or not.
5 0
3 years ago
Read 2 more answers
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