The main function of the digestive system is to break food down into molecules that can be absorbed by cells. How are the food molecules absorbed into the cells to start the cellular respiration process? A.
Food molecules are broken down by oxidation and then released by cells.

B.
Food molecules are released into the cells by the respiration process.

C.
Food molecules are absorbed through the cell wall.

D.
Food molecules are absorbed through the cell membrane.

Which sequence correctly shows the path of carbon dioxide during repiration?

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

Which prefix mean under less or below