1. Interpreting Graphics Study the two diagrams. What does hypothesis A indicate
about the ancestry of the fish in Lake 1 and Lake 2?
What does hypothesis B indicate?

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

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