Final Exam 2

Question 1

Five layers of the ocean

Answer 1

Epiplegic (littoral) 200m;
Mesopelagic (subllittoral) 1000m;
Bathypelagic (bathyal) 4000m;
Abyssopelagic (abyssal) 6000m;
Hadalpelagic (hadal) >6000m

Question 2

Three layers of light in ocean

Answer 2

Euphotic (20-100m) Photosynthesis;
Disophotic (100-600m) light but no photo;
Aphotic (>600m) no light, no photo

Question 3

Which zone is the euphotic zone in

Answer 3

the epipelagic

Question 4

What is the uppermost portion of the sea known as

Answer 4

Epipelagic Zone

Question 5

What is the deepest part of the sea

Answer 5

Aphotic (or hadalpelagic)

Question 6

What happens to temperature and light as depth and latitude increase

Answer 6

They decrease

Question 7

What happens to pressure as depth increases

Answer 7

pressure increases

Question 8

Where is salinity most variable

Answer 8

near shore

Question 9

Is the temperature of the deep sea warmer in tropical or polar regions

Answer 9

Tropical?

Question 10

T/F:Sponges are not planktonic

Answer 10

True. They are invertebrate that are bethnic

Question 11

Most primitive types of animals

Answer 11

placozoan

Question 12

What are cnidarians names for

Answer 12

their stinging cells

Question 13

What are anemones and corals

Answer 13

Cnidarians

Question 14

What are nudibranchs

Answer 14

a type of mollusk in the class Gastropoda

Question 15

Mollusks include:

Answer 15

squid, snail, clam

Question 16

What are sea cucumbers

Answer 16

echinoderms

Question 17

Echinoderms include:

Answer 17

sea stars, sea cucumbers, sea urchins, brittle stars

Question 18

Features of chordates

Answer 18

presence of a notochord, dorsal hollow nerve cord, pharyngeal slits

Question 19

What is a cookie-cutter shark

Answer 19

Not a bony fish, it is a chondrichthyes

Question 20

Example of nekton

Answer 20

any animal that can swim (whales)

Question 21

Features of mysticete whales

Answer 21

2 blowholes, baleen, feed on plankton and small fish

Question 22

Features of odontocete whales

Answer 22

1 blowhole, use echolocation, have teeth

Question 23

Bony fish are in which class

Answer 23

Osteichthyes