what might happen if two friends are miss handling a firearm with no supervision? Does this have to do with genetics or choice?

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

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

Which could be a pathway of food through an ecosystem