What type of igneous rock has two distinct grain sizes indicating two stages of cooling

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?

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.

What is it called when lava when it erupts from the surface through volcanoes.