Classification of organisms into three domains is based on: A) the presence of a cell wall
B) the number of cells in the organism
C) cellular organization
D) nutritional requirements

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 characteristics of a good respitory surface

Approximately what wavelength of light is best absorbed by chlorophyll a