A student proposes a model of the classification of living things where all of the organism that contains cell wall were placed into one group while those organism that did not have the cell membrane surrounded by a cell wall was placed into a separate group. Which statement correctly judges the proposed model by the student correctly . select all that apply

!if we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have? a) the number of producers would increase. b)the number of decomposers would increase. c)the number of primary consumers would increase. d)the numbers of primary consumers would decrease.

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

Describe the layers of the suns atmosphere?