The microorganisms was unicellular and had a well - defined nucleus.
Adjustment knobs are used to focus light in a light microscope
Characteristics should be in the blank
Answer:Folic acid
Explanation:
Folic acid is a vitamin that is used in reactions that transfer single-carbon units. The vitamin also helps reduce the risk of birth defects such as spina bifida and cleft lip. Women of child-bearing age should consume the recommended amount of this vitamin.
The gene pool of the population will remain relatively constant.