8) Index fossils, such as the one in the diagram, are useful to geologists for correlating rocks because each species
A) was narrowly distributed and became extinct after a long geologic existence
B) was widely distributed and became extinct after a short geologic existence
C) is easily found and is living today
D) is rarely found and is no longer living

The image below shows a weather service map. which details best describe this map? check all that apply

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.

Phosgene is a chemical agent that is formed by decomposition of chlorinated hydrocarbon solvents by ultraviolet radiation. a. false b. true