How to solve hardy weinberg equation using population numbers

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

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

What would happen if the krill were removed from the food web