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nirvana33 [79]
3 years ago
13

What is the main criterion that scientists use to decide where to place the boundaries between the major divisions of the geolog

ic time scale?
Biology
1 answer:
aev [14]3 years ago
4 0

Out of the following given choices;

A. major changes in the structure of Earth's layers

B. major changes that occur in the solar system

C. major changes that are recorded in the fossil record

D. major changes in the <span> arr</span>angement of the continents

The answer is C. Changes in the environment in prehistoric times can be best exhibited by the evolutionary changes of living organisms. This is best shown by fossil records. Changes in geological times are characterized by a high rate of varying individuals of a species and with high extinction rates.






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2. What was the first life form created by intentional cloning?
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Question 1
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1 - A ground level plant develops curling tendrils that wrap around other objects so it can "climb".

This is a species changing over time as it was originally a ground level plant but began to climb higher.

2 - Over many generations.

This is because diversity takes time and has to be integrated through generations; for instance, marriage. In a family, it becomes more diverse after the next generation as each generation is likely to marry someone of another ethnicity and allow the family tree to become more diverse.

3 - Mutate or Survive

It depends on what it means by mutate - develop a mutation to make it adaptable? If that's the case, then mutations within the DNA would be a result of adaptation and increase survival. Otherwise, survive is the obvious answer as adaption allows for species to move around and live longer.

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