What type of variation is necessary for natural selection to occur

artificial variation

Environmental variation

Genetic variation

Neutral variation

If the portion of dna to be transcribed has 66 bases how many amino acids will the resulting protein have

The study of fossil mammels

Which factor determines how fast a butterfly is moving?

When meiosis is complete, what has been produced? O A. Four haploid cells O B. Two diploid cells O C. Four diploid cells O D. Two haploid cells

Asexual reproduction results in offspring that are genetically identical to their parent. what type of cell process occurs to generate this type of offspring?

The difference in the concentration of a substance from one location to another is called a

Which statement is true about nitrogen and oxygen? A. They make up about 99.9% of the human body B. They are both used to make water molecules C. They are both made of protons, neutrons, and electrons. D. They both contain no subatomic particles

Time sensitive: What plants or herbs (or berries) calm snakes? need to know.

The hydrosphere is predominantly made of A. gaseous air. B. frozen water. C. solid rock. D. liquid water.

A patient has diabetes a disease that causes high blood sugar levels which macromolecule will a dietitian monitor most closely in a patient that has the disease