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Bad White [126]
3 years ago
5

What is a common ancestor?

Biology
1 answer:
labwork [276]3 years ago
3 0
Common<span> descent describes how in evolutionary biology a group of organisms share a most recent </span>common ancestor<span>. There is evidence of </span>common <span>descent that all life on Earth is descended from the last universal </span>common ancestor.
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15. When there is light, plants do which of the following biological<br> processes?<br> *
zhuklara [117]

Answer: Plants do both photosynthesis and cellular respiration.

Explanation:

All cells do cellular respiration even without light.

Honestly, photosynthesis alone would be right since the teacher didnt  state the questions correctly. But you should choose both cause in the light it does both.

6 0
3 years ago
A biology student caught and tagged 50 trout in a small lake. After two weeks, the student caught another 40 trout and found tha
Vlad1618 [11]

The best estimate of the population of trout in the lake is 500 individuals.

The low number of tagged trout recaptured may be because the tags slipped off.

This possibility can be reduced if the student used tags that does not slip off easily.

<h3>Mark and recapture method</h3>

The formula for calculating the estimated number of individuals in the population is given as:

  • N = (M*C) / R

where:

  • N = estimated Number of individuals in the population
  • M = number of individuals captured and Marked
  • C = total number Captured the second time (with and without a mark)
  • R= number of individuals Recaptured (those with a mark)

Calculating the estimate trout population:

N = (50*40)/4

N = 50

Therefore, the best estimate of the population of trout in the lake is 500 individuals.

The low number of tagged trout recaptured may be because the tags slipped off.

This possibility can be reduced if the student used tags that does not slip off easily.

Learn more about mark and recapture method at: brainly.com/question/10646744

6 0
3 years ago
How are the carbon cycle, photosysthesis, and cellular respiration related?
Mandarinka [93]

Explanation:

they are all related to CO2 in a way

3 0
3 years ago
Embryonic muscles cells are called? ​
Alexxandr [17]

Answer:

sorry i dont know the answer

5 0
2 years ago
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Is vaping a positive or negative feedback?
allochka39001 [22]

Answer: I think Negative?

Explanation:

8 0
3 years ago
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