Photosynthesis is necessary for life on earth because O It supplies oxygen for animals
O All of the listed answers
O It creates food for plants.
o It supplies food for animals.

Abiology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example? a.changes in genetics in human populationsb.antibiotic resistance in bacteria populationsc.pesticide resistance in garden insectsd.changes in the color of the peppered moth population in england