Marine ecosystems are highly complex and intricately designed. How does this design contribute to its complexity?

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

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geological equipment to analyze the composition of rock?

Dan made the table shown to describe two different relationships between animals. organism interactions relationship a relationship b one organism lives inside the organism it feeds off no organism is harmed which of the following statements is most likely correct?