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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 is the purpose of the cell wall? What type of cell is it found in?
Viktor [21]
It provides the cell as a support and protection and acts like a filtering mechanism.They are found in the plant cell
4 0
3 years ago
Read 2 more answers
Organelles called plastids are found in
JulijaS [17]

Answer:

fHay dos tipos de plastos claramented diferenciados, según la estructura de sus membranas: los plastos primarios, que se encuentran en la mayoría de las plantas y algas; y plastos secundarios, más complejos, que se encuentran en el plancton

Explanation:

8 0
3 years ago
The front leg of a cat, the front flipper of a dolphin, and the wing of a bat have the same structure and order of bones. These
Kay [80]

Answer:

The bones are homologous structures

Explanation:

Homologous structures are the structure which are found similar in appearance in different organisms.

The homologous structures in different organism shows that they shared a common ancestor or they diverged from a common ancestor during course of evolution that is these homologous structures are the result of the divergent evolution.

In the given question, the bat, dolphin and the cat shows the same structure of bone which indicates that they have evolved from a common ancestor and is true as they all belong to mammals.

Thus, the bones are homologous structures is correct.

6 0
3 years ago
What is another word for differences?
In-s [12.5K]

Answer:

variations.

Explanation:

its definitely not similarities or characteristics. and autotrophs have nothing to do with it

4 0
3 years ago
Quaternary consumers are not _______. A. Consumers b. Prey c. Predators d. Animals Please select the best answer from the choice
My name is Ann [436]

The answer is; B


Quaternary consumers sit at the very top of food chains and have no natural predators. An example is the eagle bird. These animals die naturally and are consumed by decomposers or scavengers. Quaternary consumers are usually few in number in their populations – this can be depicted in the tapering form of an ecosystem’s energy pyramid.  


5 0
3 years ago
Read 2 more answers
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