Comb jellies are considered true jellyfish because of their medusa body shape.

Why is chewing considered digestion?

_________ is secreted by stomach and is important for the absorption of Vitamin B 12 in the _______.

A person with blood type AB possesses ________ on the plasma membrane of his/her erythrocytes.

The layer of the tooth where blood vessels and nerves are found is the ___________.

Platelets become sticky and adhere to each other when exposed to ______.

In addition to the secretion of bile, the liver is active in __________.

During a swallow, the __________ has to keep food out of the airways.

________ form a temporary plug to stop bleeding in a broken blood vessel.

Chyme contains which of the following?