The statement embryonic stage is the first phase of the prenatal stage, lasting only two weeks after conception is false.
<h3>What do you mean by Embryonic stage?</h3>
An embryonic stage may be defined as the period after implantation, during which all of the major organs and structures within the growing mammal are formed.
The first two weeks after conception are known as the germinal stage, not the embryonic stage. The third through the eighth week is known as the embryonic period, and the time from the ninth week until birth is known as the fetal period.
Therefore, the statement embryonic stage is the first phase of the prenatal stage, lasting only two weeks after conception is false.
To learn more about the Embryonic stage, refer to the link:
brainly.com/question/25281460
Here is the answer for the last question.
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The effects of a mutation are different depending on the type of cell that is affected.
* If a mutation occurs in a somatic cell (all cells except the reproductive cells), this can trigger the development of a cancer (colorectal cancer, retinoblastoma...).
* If a germ cell (reproductive, giving gametes) is affected, the person will not be affected but his descendants will be affected. (this gives genetic, hereditary disease, like sickle cell anemia, haemophilia...).
If the width is increased it would be harder to stretch more force will be needed to stretch it