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DiKsa [7]
3 years ago
5

Even without being exposed to sunlight, humans exhibit a wide range of skin colors due to differences in the abundance of melano

somes. A recent hypothesis to address this difference is that autophagy plays a role in these differences. What is autophagy?
Biology
1 answer:
ivann1987 [24]3 years ago
8 0

Answer:

The stuff that comes from th light and hits you skin which triggers reactions:(

Explanation:

I'm just kidding i have no clue only in 8th grade but i haven't gone over it in class

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Once you have stopped for a school bus, do not pass until the driver signals you to proceed, the red lights stop flashing,
DaniilM [7]
Once you have stopped for a school bus, do not pass until the driver signals you to proceed, the red lights stop flashing, or the bus starts moving ahead. Whenever a vehicle ahead of you stops to let  a pedestrian pass in front of you, you should stay in line and until the vehicle ahead proceeds. 
7 0
3 years ago
What species and class does gossypium belong to?
o-na [289]

Answer:

Gossypium belongs to the Gossypium arboreum L. species.

4 0
3 years ago
As the hypothesis of sea-floor spreading predicts, the age of the ocean floor differs with location. What pattern does the ocean
zaharov [31]
Yes the hypothesis of the sea-floor spreads through the ocean ageing
7 0
3 years ago
What two components are found as part of an enzyme
krok68 [10]

Answer:

Active site and protein.

Explanation:

The two components which are often found as part of an enzyme are Active site and protein. Proteins are referred to as macromolecules or macromolecules which consists of more or one of a chain of amino acid residue. They do perform an array of functions which are within organisms.

7 0
2 years ago
When NADH is the electron donor to the respiratory chain, 2.5 ATP are formed, but when FADH2 is the electron donor, only 1.5 ATP
Fofino [41]

Answer:NADH donates it electron to complex I a higher energy level than other complexes while FADH donates it electron to complex II a lower energy complex.

Explanation:

Both NADH and FADH are shuttle of high energy electrons originally extracted from food into the inner mitochondrial membrane.

NADH donate it electron to a flavoprotein consisting of FMN prosthetic group and an iron-sulphur protein in ETC complex-I. Two electrons and one hydrogen ion are are transferred from NADH to the flavin prosthetic group of the enzyme.

While the electrons from FADH2 enters the ETC (electron transport chain) at the level of co-enzyme Q (complex II). This step does not librate enough energy to act as a proton pump.

So NADH produces 2.5 ATP during the ETC and oxidative phosphorylation because it donates its electron to Complex I, which pump more electrons across the membrane than other complexes.

5 0
3 years ago
Read 2 more answers
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