Which is the name for the opening in a sponge through which the sponge expels wastes?
a Coelom
b Osculum
C Notochord
d None of the above

Why do bacteria thrive even in hostile environments

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

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels