Explanation:
Some things consist of only one cell. They are called unicellular organisms. One of the simplest living things, an amoeba, is made of only one cell. Amoebas (sometimes spelled amebas or amoebae) are too small to be seen without a microscope, but they are commonly found in ponds and lakes
D). Many different experiments are performed and repeated.
Answer: Genes are responsible for coding proteins, which are needed for all of our body functions and to build our body structures. So, a mutation could affect the way a protein is made. If the error occurs in the gamete cell, it could lead to a mutation in a growing fetus. Because all cells in the body form from two fertilized gametes, this mutation may exist in all the cells of the developing baby. If it occurs in another cell, a skin cell, for example, then the mutation would be confined to the cells in the skin tone.
Structure A is the mitochondria
<span>Answer D is not correct, as gymnosprems are used widely for consumer goods such as lumber, soap, and nail polish.
Answer C is not correct event though wheat and corn are two of the main foods supplied to people in the world.
Answer B is a very subjective question, because some people argue that selective breeding helps agriculture, while others do not.
The correct answer is A. The green revolution was a period of scientific discoveries that lead to an increase in the supply of food worldwide.</span>
