Biology II exam III study guide

What is spongin composition?

Answer explanation

the spong compostion are spicules and spongin. Spongin is the overall organ matter, spicules give it structure.

What is the difference in crop and gizzard?

Answer explanation

The crop is going to pre-digest the food while the gizzard is going to breakdown everything.

What are arthropods and organs?

Answer explanation

Some will have 3 body parts a head, thorax, abdomen. Some will have 2 body parts the head, cephalothorax, the rest of the body. Then foregut, midgut, endgut.

Differentiate malession tubes and green glands.

Answer explanation

Malession tubes are kidneys of land base orthopods.

Green glands kidneys of water base orthopods.

what are class valves and cephalopods?

Answer explanation

class valves are going to have 2 valves and is going to have shells. While cephalopods are going to have shells internally.

What are the two types of metamorphosis?

Answer explanation

Partial metamorphosis egg, nymph, min version of adult

complete metamorphosis egg, larva, pupa, adult

Phylum cnidaria?

Answer explanation

your going to have polyps methosdist to cover the tentacles or the medusa or the upper part of the polyp. for protecting and predation. cnidarians are going to be able to reproduce through budding.

what is the horseshoe crab blood for?

Answer explanation

The blood is important use of access for living bacteria and not bad bacteria. To show the presence of toxins in vaccines.

Formation of pearls?

Answer explanation

The body of the bivalve will be divided into three parts the foot, visceral mass, and the rest of the body.

Phylum Annelida

Answer explanation

Their bodies are composed of literal rings, and they are hydrated they will have hydrostatic skeletons.