Essential amino acids cannot be produced by the body so they must come from our diet we can get them from eating foods that contains which bio molecule

What must happen before meiosis can begin? a. four gametes must be produced b. the four tetrads must be pulled apart c. dna doubles and produces sister chromatids d. the cell membrane pinches together

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

What type of specimens where you able to see under each of the microscopes in the microscope activity