The diagram shows a section of a cell membrane that includes a channel protein. The function of this protein is toA. Strengthen the outer boundary of the cell. B. Connect reproductive cells during fertilization. C. Allow certain substances to leave or enter the cell. D. Exchange organelles or chromosomes between specialized cells.

Genes that come together with different alleles are heterozygous. homozygous. genotype. segregated.

How is anaerobic respiration affected by changes in temperature? (5 points)based on the conditions of early earth, what conclusion can you draw about the amount of anaerobic respiration that was occurring at earth’s beginning? explain your answer.(5 points)if there was a sudden drop in temperature after the evolution of the first living cells, predict how that might have affected the changes in the atmosphere and the evolution of cyanobacteria and other autotrophs. explain your answer. (5 points)

Strands of genetic material floating in the nucleus are referred to as