Unit 7

Question 1

What are flippers?

Answer 1

modified appendages designed for swimming

Question 2

When ____________ multiply rapidly in a short period of time, “red tides” will occur due to the amount of poison in the water.

Answer 2

dinoflagellates

Question 3

What is fragmentation?

Answer 3

the process of asexual reproduction in which a piece of the organism breaks off, forming a new organism

Question 4

Sea anemones and corals only exist in the ____________ form.

Answer 4

polyp

Question 5

What is regeneration?

Answer 5

the ability to grow new body parts when one or more get destroyed or damaged

Question 6

What is macrobenthos

Answer 6

benthos that are larger than one millimeter

Question 7

What is true about the counter-current exchange?

Answer 7

The arteries in birds that live in very cold water are next to the veins in the feet, this allows their blood to be heated before it gets to their heart.

Question 8

____________ can be used to classify organisms through schematic and word
_____________ keys.

Answer 8

Taxonomy, dichotomous

Question 9

What does amphibian mean?

Answer 9

double life

Question 10

feather-like slits that take in oxygen from the water and release carbon dioxide

Answer 10

gills

Question 11

Some echinoderms feed off dead and decaying matter. This dead and decaying matter is called ____________.

Answer 11

detritus

Question 12

algae

Answer 12

protists that carry out photosynthesis

Question 13

Most of the fish in the world belong into the osteichthyes class, they are also called _____.

Answer 13

bony fish

Question 14

Diatoms can be found in ____.

Answer 14

• silver polish
• toothpaste
• insulation

Question 15

Turtles are exothermic, what does this mean?

Answer 15

cold blooded

Question 16

An example of gastropods can be:

Answer 16

• sea slugs and snails
• abalones and conches

Question 17

What is sessile?

Answer 17

permanently attached to one spot

Question 18

What is taxonomy? Why is it important?

Answer 18

• It helps scientists identify all of earth’s species.
• the science of classification

Question 19

Animal-like protists that feed off other organisms are also called ____.

Answer 19

zooplankton

Question 20

_____________ are jawless fish.

Answer 20

Agnathans

Question 21

Salmon lay their eggs in _____.

Answer 21

freshwater

Question 22

The majority of oil deposits come from _____.

Answer 22

cyanobacteria

Question 23

______________ are able to stay under water for long periods of time because once their lungs are filled with air, they close their blowholes and collapse their lungs.

Answer 23

Cetaceans

Question 24

_____________, like seals, are able to live both on land and in the water.

Answer 24

Pinnipeds

Question 25

Why can mangrove trees live in saltwater?

Answer 25

Their leaves can excrete saltwater

Question 26

What are cephalopods?

Answer 26

- mollusks that do not possess shells -have a distincitive head and tentacles

Question 27

Some examples of echinoderms are ____.

Answer 27

-starfish, sand dollars, sea urchins -sea cucumbers, sea lillies

Question 28

____________ developed the current taxonomy system.

Answer 28

Carl Linnaeus

Question 29

What are phytoplankton?

Answer 29

- refers to protists that carry out photosynthesis - also known as algae

Question 30

In which two ways are echinoderms unique?

Answer 30

- they possess suction cups on the tips of their appendages - they possess a water vascular system

Question 31

______________ are sessile, filter feed and are able to regenerate.

Answer 31

Sponges

Question 32

What is physiology?

Answer 32

Physiology is the branch of biology that deals with body systems.

Question 33

Echinoderms have ___________ symmetry in the larvae stage and __________ symmetry as adults.

Answer 33

bilateral, radial

Question 34

_________ are both plant and animal like.

Answer 34

Euglenoids

Question 35

fins

Answer 35

fan-shaped membranes that help fish maintain balance, move, and steer themselves

Question 36

What are mollusks?

Answer 36

- possess a shell, which protects their soft bodies from harm -have soft, unsegmented bodies -one type of invertebrate who are classified as nekton

Question 37

Sea squirts and lancelets are examples of ________ chordates.

Answer 37

invertebrate