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Ira Lisetskai [31]
3 years ago
10

Explain why DNA is called a molecular clock.

Biology
1 answer:
hammer [34]3 years ago
5 0

The molecular clock is a figurative term for a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged. The biomolecular data used for such calculations are usually nucleotide sequences for DNA or amino acid sequences for proteins.

Explanation:

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Distinguish between the contribution of genes and the environment to phenotypes
rusak2 [61]
<span>Gene experssion are influenced by enviroment. the best example is skin color in case of human for e.g if person with fair color or white complexion goes to africa or any part where sun exposure is more his or her color gets dark .the darking of skin is due to melanin production. see here person is same only difference is in enviromental condition due to which gene which are responsible for the production of melanin are produced.
I hope u understood it</span>
7 0
3 years ago
Contrast the three categories of materials and their relationship to transmitted light, making sure to include at least two exam
Ann [662]

Answer:

Transparent, translucent, and opaque.

Explanation:

Transparent, translucent, and opaque are the three categories of materials that has a relation with transmitted light. Transparent objects are those from which the light passes through e.g plastic, water etc while on the other hand, translucent objects are those from which some of the light pass through e.g sunglasses and wax paper etc and opaque objects are those from which no light can pass through their body e.g wood and metal etc.

8 0
2 years ago
The Colorado plateau is an example of what mountains
Tems11 [23]
I believe the Southern Rocky Mountains such as the San Juan Mountains in Colorado and the La Sal Mountains in Utah.
3 0
2 years ago
Which of the following describes surface tension in water?
snow_tiger [21]

Answer:

C

Explanation:

Small objects usually do not permeate the surface of the water due to its high tension. The covalent bonding of water allows for its unique ability of high surface tension.

8 0
3 years ago
What landform develops on coral reefs as a result of wave action
Talja [164]
A reef is a ridge of a rock of any type of land that extends some distance just under the surface of the water. A coral reef is a lot of calcium carbonate that is also made up of living creatures. A coral reef is created when a small amount of dead coral turns into calcium carbonate. This process is very slow. The famous reefs are the Great barrier Reef of Austria and Belize and Cayman Islands.
Wave actions are usually not a problem due to hard coral reefs. The reef reduces a wave energy. But sometimes waves can break off or flatten large portions of coral reefs, forming grooves in once circular reef. The higher areas between the grooves are known as buttresses and may grow together at the top producing arches. 
Answer:  Landform that develops on coral reefs as a result of wave action are Arches.  
8 0
3 years ago
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