Many different immigrants groups came to texas during the 1840s and 1850s to

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

There is a liquid capsule inside a cup full of liquid. the cup full of liquid has salt in it and the liquid capsule has no salt in it. in which direction will the solvent flow? a. the salt does not have to move b. from the capsule to the larger cup c. equally between the capsule and the cup d. from the larger cup to the capsule

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