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Mekhanik [1.2K]
3 years ago
12

Which of the following rocks forms from shells and calcium carbonate?

Biology
2 answers:
Blababa [14]3 years ago
7 0
The answer is limestone.

prisoha [69]3 years ago
5 0

The answer is option A, limestone.

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Explain how mutations in the photoreceptor genes result in different vision defects.
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Answer:

The human eye is the prime organ of the body, which associates with the photons of light and allows one to see various things. The unique cells found in retina, which does activity of seeing are cones and rods cells. Rods help to see in dim light vision, while on the other hand, cone cells are unique in recognizing different colors.  

These cells comprise photoreceptor proteins that help in trapping photons at particular wavelength. Mutation in the gene encrypting for these proteins results in permanent or temporary vision issues. The extremity of defects relies upon the degree to which mutation takes place.  

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Identically, the mutation in the cone cell also results in vision issues, known as red color blindness and tritanopia. Tritanopia refers to a kind of color blindness, which originates because of insensitivity of blue receiving protein gene towards blue light. On the other hand, red color blindness refers to insensitivity of red receiving cone cells in captivating long-wavelength photons.  

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Select the living organisms that will decrease as a result of the loss of coral in the food web (Other answers besides the ones
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Parrotfish

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these three are the ones that eat the coral directly

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Hope this helps!

3 0
3 years ago
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