Which substance traps pathogens and prevents them from entering the deeper tissue of the body? tears oils sweat mucus

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

Asmall population of chimpanzees lives in a habitat thant undergoes no change for a long period of time. how will genetic drift affect this population

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.