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Dimas [21]
3 years ago
5

Why do modern humans crave food that is high in fat and sugar

Biology
1 answer:
abruzzese [7]3 years ago
8 0
These preferences may have been advantageous in our evolutionary history, when food was less reliably available

-from quizlet
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After a dye diffuses uniformly throughout a glass of water, the dye molecules are no longer moving. True or false?
Anton [14]
The answer is false, liquid molecules continue to move even after the concentration is uniform.

Diffusion happens because there’s a concentration gradient between the dye and the water, therefore dye molecules moves to the water area. But note that this is only the net movement of the molecules, which means, even if more molecules are moving towards water, there are still some dye molecules that are moving in the opposite direction.

So, after the concentration is equal, the motion of the dye molecules does not stop, they still move in random directions, but there’s no net movement instead, as there’s no concentration gradient. Remember molecules are always moving in all directions , it just depends on whether there’s a net movement or not. If there’s no net movement, the amount of molecules moving to each and every direction is always equal.
8 0
3 years ago
Which of the diagrams shows red blood cells in 0.0 M Solution​
Julli [10]

The rigth answer is the picture 4.

In the case of a hypotonic extracellular medium, there will be a large inflow of water to dilute the Na, thereby increasing the cell volume and there will be an explosion of the membrane in places so hemolysis, the contents of the red cell ( Hemoglobin) is released into the blood plasma.

On the other hand, in the case where the extracellular medium is hypertonic, therefore archi concentrated, well it will be the water of the red cell that will come out without damaging the membrane, we will rather have a red cell that is completely flat and non-functional without release. erythrocyte (Hb) content.

3 0
2 years ago
Is it living or nonliving?
defon

Answer:

nonliving

Explanation:

because it's a stone

5 0
2 years ago
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Match the structural formula to the chemical formula for this substance.
Ivahew [28]
Jensibwkue. Heberibekkowbebdir r
4 0
2 years ago
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List the four main components of air in their molecular form
kap26 [50]

Answer:

Dry air is a mechanical mixture of nitrogen, oxygen, argon and several other gases in minor amounts.

Explanation:

7 0
2 years ago
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