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amid [387]
3 years ago
14

I don't understand this!

Biology
2 answers:
sattari [20]3 years ago
7 0
Each on diverged from the common ancestor and has its own accumulated mutations. If they have six differences each it would be 10,000 years per one mistake giving you a total of 60,000 years ago. 
abruzzese [7]3 years ago
6 0

Answer:

Option B, 60,000 years ago

Explanation:

It is given that the rate of substitution is one substitution per 10,000years

Thus, starting from the base year

Number of substitution after 10,000years = 1

Number of substitution after 20,000years = 2

Number of substitution after 30,000years = 3

Number of substitution after 40,000years = 4

Number of substitution after 50,000years = 5

Number of substitution after 60,000years = 6

Thus, it is clear that 6 substitution or changes will occur in 60,000years.

Thus, option B is correct.

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What needs to happen to DNA for cells to divide
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Answer:

each new cell needs a DNA copy, which serves as instructions on how to function as a cell. DNA replicates before a cell divides. The replication process is semi-conservative, which means that when DNA creates a copy, half of the old strand is retained in the new strand to reduce the number of copy errors.

Explanation:

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3 years ago
Stove:kitchen: as _____ :plant cell.
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Answer: Cloroplast

Hope this helps :))

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3 years ago
Read 2 more answers
A reaction produces a gas, which is collected in a glass cylinder. when a glowing splint is placed inside the container, it burn
defon

If a burning splint is placed in a container and burns more brightly in the presence of some gas already in the cylinder, that gas would probably be Oxygen.  

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5 0
3 years ago
The right lymphatic duct drains ________. A) the right side of the body B) the right side of the head and thorax, and the right
zavuch27 [327]

Answer:

B

Explanation:

The right lymphatic duct drains the right side of the head, neck, and chest wall; it also drains the right lung and the lower half of the left lung, the heart, the dome of the liver, and the right diaphragm via the bronchomediastinal trunk.

8 0
3 years ago
A Bromeliad is a plant that provides water and shelter to frogs. The Bromeliad does not gain or lose anything in the relationshi
balandron [24]
The answer is commensalism.

Commensalism is a relationship between two species in which only one of them has benefit, and the other one is not affected.
In this relationship, frogs benefit from this relationship. They get water and shelter from the Bromeliad. The Bromeliad <span>does not gain or lose anything in the relationship, so it is not affected anyway. Thus, the relationship between frogs and the Bromeliad is an example of commensalism.</span>
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