Which of the following adaptions helps birds fly a: they have more fat than most animals so they can fly for long distances
b: they have hollow bones so they are lighter
c they have a smaller blood vessel so
their heart have to work less in a flight
d: the largest stomach so that they can absorb food faster

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!

answer; synapse;