How are demographics used in biology?

Gram-negative bacteria have a cell wall that is! and does not accept the stain, making itappear

The table below shows data for a population of fish in a pond. fish body color # of fins scales? tail shape a silver 4 yes fan b pink 4 yes flat c black 4 yes fan d orange 4 yes flat e orange 4 yes fan f silver 4 yes flat which of the above characteristics would be most in developing a classification system for the fish? a. body color and tail shape b. presence of scales and tail shape c. body color and number of fins d. number of fins and presence of scales

What do your cells need to live? a. carbon dioxide b. carbon c. air d. oxygen