Compare three components of inhaled air with that of exhaled air

Apatient is in need of hydration. which type of solution are the patient's cells most likely in?

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia