Alicia is not sure of the difference between a food web and a food chain. write a paragraph for alicia that explains the difference between a food web and food chain.

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

The illustration shown is an ovum, a female sex cell. a mutation in this cell may be passed to the woman’s offspring during a) birth. b) mitosis. c) dna replication. d) sexual reproduction

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?