Which process is used to measure primary productivity in aquatic ecosystems? a. measuring o2 uptake and release b. measuring co2 uptake and release c. measuring changes in biomass d. measuring solar energy absorption

Rue or false siblings look simila rbecause they each have some traits of their parents.

The pronunciation aid that determines the stress placed upon a syllable is the

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.