Inverts

Question 1

Classification

Answer 1

No backbone, most important and diverse group in the ocean, 97% of all describes animals are inverts, mostly benthic some pelagic

Question 2

Porifera

Answer 2

Sponges

Question 3

Cnidaria

Answer 3

Jellyfish, sea anemones, and Corals

Question 4

Plathenminththes

Answer 4

Flatworms

Question 5

Nemertea

Answer 5

Flatworms

Question 6

Nematoda

Answer 6

Flatworms

Question 7

Annelida

Answer 7

Polychaete worms

Question 8

Mollusca

Answer 8

Clams, Squid, Octopus, shellfish

Question 9

Arthropoda

Answer 9

Lobster, crabs, shrimp, hermit crabs, mantis shrimp

Question 10

Echinodermata

Answer 10

Sea stars, brittle stars, sand dollars, sea cucumbers

Question 11

Infaunal

Answer 11

Organisms that live in the sediment

Question 12

Epifaunal

Answer 12

Organisms that live on the bottom (not in)

Question 13

Motile

Answer 13

Organisms that are able to move about the bottom

Question 14

Sessile

Answer 14

Organisms that are stuck in place

Question 15

Inverts feeding ecology

Answer 15

Deposit feeders
Grazers
Carnivorous predators
Scavengers

Question 16

Porifera (sponges)

Answer 16

Simplest most primitive metazoan, filter feeders, classified by shape

Question 17

Cnidaria distinguishing feature

Answer 17

Nematocytes stinging cells

Question 18

Mollusca distinguishing feature

Answer 18

Radula
Mantle
Nervous systems

Question 19

Keystone species

Answer 19

A species that substantially affects the structure of the communities despite the fact that individuals of the species might not be particularly numerous