Quiz about Marine Producers Review

Question 1

Which term refers to the entire body of the seaweed?

Accepted Answer

thallus

Answer

blade

Answer

pneumatocyst

Answer

stipe

Question 2

What is the leaf-like flattened portion of the seaweed?

Accepted Answer

blade

Answer

holdfast

Answer

thallus

Answer

stipe

Question 3

Which part of the seaweed acts as a root-like structure that attaches the seaweed to a hard surface?

Accepted Answer

holdfast

Answer

stipe

Answer

blade

Answer

thallus

Question 4

Which part of the seaweed is a stem-like structure that supports the blades?

Accepted Answer

stipe

Answer

thallus

Answer

holdfast

Answer

pneumatocysts

Question 5

Since plankton are not strong swimmers, how do they move around the ocean

Accepted Answer

All of these

Answer

Currents

Answer

Waves

Answer

Tides

Question 6

What is one reason that phytoplankton are important?

Accepted Answer

they make oxygen

Answer

they clean the water

Answer

they are food for us

Answer

they make the water warmer

Question 7

What is the term used to describe a sudden increase in phytoplankton growth?

Accepted Answer

A Bloom

Answer

A Spring

Answer

A Migration

Answer

A Flower

Question 8

Which of the following phytoplankton are able to move using flagella?

Accepted Answer

Dinoflagellate

Answer

Diatoms

Answer

Coccolithophores

Answer

Cyanobacteria

Question 9

How are seaweed classified or sorted in to groups?

Accepted Answer

By their pigment

Answer

By their length

Answer

By the water they are found in

Answer

By their toxins

Question 10

Why are air bladders important for seaweed?

Accepted Answer

float closer to the sun for photosynthesis

Answer

float closer to the sun to create shade

Answer

float closer to the sun to capture prey

Answer

float closer to the surface to collect oxygen

Question 11

Dinoflagellates can cause __________ which is toxic to fish, shellfish and humans.

Accepted Answer

Red Tide

Answer

Green TIde

Answer

Malaria

Answer

Algal Bloom

Question 12

Phytoplankton are associated with the photic zone because they rely on the sun for the process of:

Accepted Answer

Photosynthesis

Answer

Respiration

Answer

Chemosynthesis

Answer

Heterotrophs

Question 13

why is seaweed vital to a tropical ecosystem?

Accepted Answer

both of these

Answer

Food and shelter

Answer

place to deposit eggs

Answer

none of these

Question 14

Besides food and oxygen, what other role do marine plants do for marine organisms?

Accepted Answer

habitats

Answer

carbon dioxide

Answer

light

Answer

all of the above

Question 15

Mangroves need to live in ................... water

Accepted Answer

Salty

Answer

Acidic

Answer

Fresh

Answer

Deep

Question 16

The areas where mangroves grow should be ______________ with no strong waves or tidal currents.

Accepted Answer

Calm

Answer

Stormy

Question 17

Which is not a characteristic of mangroves?

Accepted Answer

Deep

Answer

Muddy

Answer

Shallow

Answer

Trees/bushes

Question 18

Mangroves protect coastlines from erosion by acting as a natural barrier and flood defence. True or false?

Accepted Answer

True

Answer

False

Question 19

How do mangroves get ride of excess salt.

Accepted Answer

The leaves of some mangroves aid in the removal of excess salt because salt is deposited in the old leaves that are about to be shed

Answer

Evaporation

Answer

dissolving more salts in water

Answer

they cannot get ride of excess salt

Question 20

What is a salt marsh?

Accepted Answer

D) a grassy place where salt water and fresh water mix

Answer

A) a grassy place at the mouth of every river.

Answer

B) a thin strip of land along the ocean.

Answer

C) an area of freshwater where weeds and grasses grow.

Question 21

How do salt marshes act as a buffer (protection)?

Accepted Answer

C) when it protects the shoreline from high waves and wind

Answer

B) when it is exposed during low tide

Answer

A) when it is underwater during high tide

Answer

D) when it is filled in and used for building

Question 22

__________________ - amount of dissolved salts the water contains.

Accepted Answer

salinity

Answer

pollution

Answer

acidification

Question 23

__________________________ form where rivers deposit their load of mineral rich mud.

Accepted Answer

salt marshes

Answer

freshwater marshes

Answer

canals

Question 24

Mangrove swamps are found in__________________________________________________.

Accepted Answer

tropical and subtropical zones

Answer

arctic and glacial zones

Question 25

Which of the following is not characteristic of salt marshes and mangrove swamps?

Accepted Answer

both are dominated by marsh grasses

Answer

both provide habitats for wildlife

Answer

both are found along coastal areas

Answer

both are threatened by development

Question 26

Ospreys are birds that eat fish. Where would an osprey most likely live?

Accepted Answer

near a marsh

Answer

near a forest

Answer

near a desert

Answer

near a prairie

Question 27

Most of the food for an aquatic ecosystem is produced by

Accepted Answer

Phytoplankton

Answer

Worms

Answer

Zooplankton

Answer

Fish

Question 28

The type of plankton that produces most of the food in an aquatic ecosystem is called

Accepted Answer

phytoplankton

Answer

Nekton

Answer

benthos

Answer

zooplankton

Question 29

Photosynthetic organisms are found mainly in shallow water due to the availability of

Accepted Answer

sunlight

Answer

oxygen

Answer

nutrients

Answer

salt

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