What happens before mitosis occurs? a. the cell undergoes meiosis. b. cytoplasm from the parent cell becomes two daughter cells. c. the cell grows and makes a copy of its genetic material. d. the cell membrane disintegrates.

Sydney drew a flow chart to illustrate the nitrogen cycle.which labels best complete the flow chart? x: producers undergo photosynthesis.y: nitrogen compounds are released into the air.x: nitrogen compounds are released into the air.y: producers undergo photosynthesis.x: free nitrogen is in the atmosphere.y: producers absorb nitrogen compounds through their roots.x: producers absorb nitrogen compounds through their roots.y: free nitrogen is in the atmosphere.

Do you think the gene eef1 alpha1 supports cell theory? explain your response.

What is the difference between a scientific hypotheses and a scientific theory?