How can mountains, oceans, pollution, and forest fires affect climate?

Modern whales developed their traits through natural selection what occurs during the process of natural selection

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

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.