Crustacean auxillary quiz

Question 1

What is the common name of amphipods?

Answer 1

Side-swimmers

Question 2

Ostracods:
- resemble bivales in possessing a ________ hinged carapace of right and left _____, with an ________ muscle for closure
- Ostracods have a cosmopolitan distribution in _______, _________ and _________ environments
Ostracods use their ______ for locomotion

Answer 2

dorsally, valves, adductor
freshwater, marine, benthic
antennae

Question 3

Class Cirripedia:
- small class of about 1000 species of _______, _______ crustaceans commonly called ________
- _____-living barnacles are separated into two groups:
1 - ______ or goose-necked barnacles
2 - _____-less, or sessile barnacles

Answer 3

sessile, marine, barnacles
free
stalked
stalk-less

Question 4

Class Copepoda:

• large class of small crustaceans with prominent first ________
• copepods have a cosmopolitan distribution in ________, and _______ environments, occuring in both ________ and _________ habitats

Answer 4

antennae

freshwater, marine, benthic, planktonic

Question 5

Anocostraca swim on their _____ - their legs look like _____.

Answer 5

backs, wings

Question 6

Small, free-living crustaceans, their larvae and larvea of large forms are called _________.
These are very important ecologically, as they consistute a trophic level between single celled organisms and zooplanktivorous fish.

Answer 6

zooplankton

Question 7

Crustaceans are unique arthropods possessing two pairs of ________, _______ appendages, and _________

Answer 7

antennae, biramus, mandibles