NQ - Lesson 4 - Marine Inverts 2

Question 1

Phylum Platyhelminthes?

Answer 1

Flat worms

Question 2

Features of Platyhelminthes? (3)

Answer 2

Mainly parasitic, occurs in all major habitats, bilateral symmetry

Question 3

Phylum Rotifera?

Answer 3

Rotifers

Question 4

Phylum Nematoda?

Answer 4

Round Worms

Question 5

Difference between Platyhelminthes and Nematoda? (2)

Answer 5

Nematoda are more evolutionary advanced and play and important role in nutrient cycling.

Question 6

Phylum Mollusca? (4)

Answer 6

Snails, clams, squids, octopuses

Question 7

Coelomates young are referred to as what?

Answer 7

Trochophore larvae that develops into a Veliger

Question 8

Defining feature of Polyplacophora class of Mollusca? (Name and adaptation)

Answer 8

Chitons - Have a protective shell divided into eight articulating aragonite valves

Question 9

Interesting adaptation of Chiton shells?

Answer 9

Its outer layer contains up to 1000 tiny eyes

Question 10

Defining features of Gastropoda class of Mollusca? (2)

Answer 10

More active, mainly grazers

Question 11

Examples of Gastropoda? (2)

Answer 11

Limpets, Sea slugs

Question 12

Defining features of Cephalopoda class of Mollusca? (3)

Answer 12

Reduced/no shell, modified foot into tentacles, multiple hearts

Question 13

Example of Cephalopoda? (2)

Answer 13

Squid, octopus

Question 14

What is the beak of some Cephalopoda made out of?

Answer 14

Chitin

Question 15

Defining features of Bivalvia class of Mollusca? (2)

Answer 15

Filter feeders, shell hinge laterally

Question 16

Example of Bivalvia (2)

Answer 16

Clams, oysters

Question 17

Phylum Annelida?

Answer 17

Segmented worms

Question 18

Examples of Annelida? (3)

Answer 18

Rag worm, Christmas tree worm, Worm reefs

Question 19

Phylum Arthropoda? (3)

Answer 19

Spiders, insects, crustaceans

Question 20

Major groupings of Arthropoda? (4)

Answer 20

Copepoda, Cirripedia, Ostracoda, Malacostraca

Question 21

How do Copepods live their life?

Answer 21

As Holoplankton

Question 22

Class Cirripedia features? (2)

Answer 22

E.g Barnacles. Planktonic larvae find a suitable site before forming a shell and remaining on that substrate.

Question 23

Class Ostracoda features? (2)

Answer 23

Planktonic/Benthic, Micropredators

Question 24

What does Benthic mean?

Answer 24

Animals and plants that live on the seafloor or lowest layer of a body of water

Question 25

Examples of Malacostraca? (4)

Answer 25

crabs, lobster, shrimp, krill,