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Darina [25.2K]
3 years ago
8

What is the role of electron carrier molecules in energy processing systems? why are they necessary?

Biology
1 answer:
natima [27]3 years ago
3 0
In energy processing systems electronic carrier molecules transfer electrons from one part to other part of energy processing system. This provides the necessary energy and reduces power to carry out chemical reactions. They are necessary for aerobic cellular respiration and photosynthesis.
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Which of the following applies to human skin color?
Bad White [126]

Answer:

A. Heritable

C. Affected by the MC1R gene

D. Polygenic trait

Has evolved due to evolutionary processes such as natural selection.

Explanation:

Human skin color is a polygenic trait as it is regulated by more than one gene. Each allele of these genes has an additive effect on the overall skin color of an individual. Therefore, the trait is a continuous trait, not a discrete one. The genes for human skin color are transmitted from parents to progeny which in turn makes it a heritable trait.

The gene MC1R codes for melanocortin 1 receptor and thereby, regulate the skin color of humans since melanocyte-stimulating hormone binds to the receptor to trigger the synthesis of melanin from melanocytes. Evolution of various skin color in human beings is regulated by natural selection which in turn favors the skin tone best suited under the prevailing climatic conditions of a particular human population  

6 0
2 years ago
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How does sequencing genes provide evidence for evolution
barxatty [35]

Answer:

how does sequencing Gene's brain function as an instrument for me and my

7 0
3 years ago
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which of the following would be the best way to determine whether a cell belonged with Archaea or bacteria?
docker41 [41]
Hey there

the answer is

 a Archean is a single celled microorganism and has no cell nucleus  
and Bacteria <span>constitute a large </span>domain<span> of </span>prokaryotic microorganisms<span>. Typically a few </span>micrometres<span> in length, bacteria have a </span>number of shapes<span>, ranging from </span>spheres<span> to </span>rods<span> and </span><span>spirals</span> 

so im going to say D as the answer

Hopes this helps u :)  
6 0
2 years ago
In the initial days of pregnancy, a woman often feels no symptoms at all. Women with ectopic pregnancies often
tatiyna

Answer:

See explanation.

Explanation:

The initial days and even weeks of pregnancy may happen without a woman being aware of the pregnancy. Even though the baby grows quickly, it starts out as just a fertilized egg. So it takes a while to be noticed. And there is plenty of room at first.

But with an ectopic pregnancy, the baby attaches, instead of in the uterus, outside of the uterus. In most cases, the baby attaches inside the fallopian tube. Outside of the uterus is not designed to provide support and space for the baby. As growth occurs, it can cause severe problems. This is dangerous and can cause bleeding, pain, and possibly shock of the woman's condition is not identified and treated.  

Hope this helps! Have an awesome day!! :-)

7 0
3 years ago
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Please help ASAP!! A mining company's reclamation plan is not permitted because there is no evidence that funding has been secur
klio [65]

Answer:

Cost Issue

Explanation:

Their funding hasn't been secured to repurpose the land.

7 0
3 years ago
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