Which characteristic do sea cucumbers have that makes them different from sea urchins?

tentacles for feeding
tube feet for movement
teeth-like structures for digesting
endoskeleton for protection

Select the correct answer.which scenario describes unethical lab behavior? a.danny stores the chemicals required for his experiment in flasks and beakers.b. anna publishes the results of her experiment on the growth rate of saplings.c. jason repeatedly runs an experiment until he gets the results he desires.d. mia records her observations of an experiment precisely and accurately.resetnext

The shift of a vehicle's weight around its center of gravity is known as

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