In order to reproduce, female sex cells must be fertilized by A. Sperm.
Answer:
Correct answer is A
Explanation:
Cell theory is a theory, not a law because the cell theory does not have enough support to become a law.
B, ocean trenches are formed after a underwater volcano has erupted.<span />
Lifespan is an indicator that measures the average of the maximum number of years a human can live.
<h3>What is lifespan?</h3>
It is the number of years that a newborn can live according to the standard of mortality by age of the population of its country.
In other words, it is a concept that only makes sense for one generation and is obtained as part of a mortality table that refers to the average number of years that a person is expected to live after birth.
Therefore, we can conclude that lifespan is an indicator that measures the average of the maximum number of years a human can live.
Learn more about lifespan here: brainly.com/question/11445304
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