wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Plankton and Seaweed

Total questions: 45

Worksheet time: 45mins

Name
Class
Date
1.

Which of the following 4 words or phrases does not fit with the other 3?

a)

Phytoplankton

b)

Primary producer

c)

Respiration

d)

Epipelagic zone

2.
Which of the following 4 words or phrases does not fit with the other 3?
a)
Zooplankton
b)
Top Predators
c)
Heterotroph
d)
Can't out swim currents
3.

Which of the following 4 words or phrases does not fit with the other 3?

a)

Holoplankton

b)

Develops into an adult form of the organism

c)

Phytoplankton

d)

Epipelagic zone

4.

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

a)

Currents

b)

Waves

c)

Tides

d)

All of these

5.

What is one reason that phytoplankton are important?

a)

they clean the water

b)

they make oxygen

c)

they are drifting animals

d)

they make the water warmer

6.
What is the term used to describe a sudden increase in phytoplankton growth? 
a)
A Spring
b)
A Migration
c)
A Bloom
d)
A Flower
7.

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

a)

Dinoflagellate

b)

Diatoms

c)

Coccolithophores

d)

Cyanobacteria

8.

Why do zooplankton migrate?

a)

to avoid sunburn

b)

to find mates

c)

to eat phytoplankton at night

d)

to avoid predators

9.
How long are Holoplankton considered plankton? 
a)
until they learn to swim
b)
until they find a mate
c)
their whole life
d)
until they become an adult
10.

How are seaweed classified or sorted in to groups?

a)

By their pigment

b)

By their length

c)

By the water they are found in

d)

By their toxins

11.

Which phytoplankton are crunchy because they have silica and/or calcium?

a)

diatoms and coccolithophores

b)

diatoms and dinoflagellates

c)

dinoflagellates and coccolithophores

d)

cyanobacteria and diatoms

12.

Which seaweed can withstand the least amount of light and can grow the deepest?

a)

red

b)

brown

c)

green

d)

blue

13.

Why are floats/bladders important for seaweed?

a)

float closer to the sun to create shade

b)

float closer to the sun to capture prey

c)

float closer to the surface to collect oxygen

d)

float closer to the sun for photosynthesis

14.
What is true about meroplankton?
a)
they are plankton for their whole life
b)
they never learn to swim
c)
they are plankton for part of their life
d)
their parents don't reproduce through spawning
15.

What is true about holoplankton?

a)

they are plankton for only part of their life

b)

they are always plankton

c)

they include organisms like sea stars

d)

they include organisms like whales

16.

What is the name of this organism that is nanoplankton and dissolves at low temperatures?

a)

coccolithophore

b)

cyanobacteria

c)

dinoflagellate

d)

diatom

17.

Is this organism a holoplankton or a meroplankton?

a)

holoplankton

b)

meroplankton

18.

Is this organism a holoplankton or a meroplankton?

a)

holoplankton

b)

meroplankton

19.

Is this organism a holoplankton or a meroplankton?

a)

holoplankton

b)

meroplankton

20.
Organisms who are plankton only part of their lives.
a)
holoplankton
b)
microplankton
c)
meroplankton
d)
macroplankton
21.
Diatoms are: 
a)
Phytoplankton
b)
Zooplankton
22.
Dinoflagellates can cause __________ which is toxic to fish, shellfish and humans.
a)
Green TIde
b)
Red Tide
c)
Malaria
d)
Algal Bloom
23.
Phytoplankton are associated with the photic zone because they rely on the sun for the process of:
a)
Respiration
b)
Photosynthesis
c)
Chemosynthesis
d)
Heterotrophs
24.
What do dinoflagellates use to move?
a)
cilia
b)
1 flagella
c)
2 flagella
d)
spines
25.
The larvae of crabs and krill belong to which group of plankton?
a)
Phytoplankton
b)
Meroplankton
c)
Holoplankton
d)
None of the above
26.
Which are there more of, zooplankton or phytoplankton?
a)
Phytoplankton
b)
Zooplankton
c)
Both
27.
Permanent members of the plankton family.
a)
Holoplankton
b)
Meroplankton
c)
Autotroph
d)
Heterotroph
28.
What is the leaf-like flattened portion of the seaweed?
a)
holdfast
b)
thallus
c)
blade
d)
stipe
29.
Which type of algae includes sargasso weed and kelp?
a)
Green algae
b)
Red algae
c)
Brown algae
30.
Which part of the seaweed acts as a root-like structure that attaches the seaweed to a hard surface?
a)
stipe
b)
holdfast
c)
blade
d)
thallus
31.
Which part of the seaweed is a stem-like structure that supports the blades?
a)
thallus
b)
stipe
c)
holdfast
d)
pneumatocysts
32.

What part of the seaweed fills with gas to rise to the ocean's surface?

a)

Thallus

b)

Bladder

c)

Stipe

d)

Holdfast

33.

Which factors can limit phytoplankton productivity?

a)

Sunlight

b)

Inorganic Nutrients

c)

Temperature

d)

All of these

34.

Which type of algae has red pigment?

a)

Chlorophyta

b)

Phaeophyta

c)

Rhodophyta

d)

Merophyta

35.

Which type of Algae has green pigments?

a)

Chlorophyta

b)

Phaeophyta

c)

Rhodophyta

d)

Merophyta

36.

Whyich type of algae has brown/yellow pigments?

a)

Chlorophyta

b)

Phaeophyta

c)

Rhodophyta

d)

Merophyta

37.

Which of the following is NOT a byproduct of seaweed?

a)

carageenan

b)

alginate

c)

agar

d)

sucralose

38.

why is seaweed vital to a tropical ecosystem?

a)

Food and shelter

b)

place to deposit eggs

c)

both of these

d)

none of these

39.

The study of algae and seaweed is called

a)

Seaweedology

b)

Phycology

c)

Bathyology

d)

Planktonology

40.

Which animals are the primary consumers of the ocean food web?

a)

phytoplankton

b)

seaweed

c)

zooplankton

d)

all of these

41.

Plankton are considered

a)

juvenile fish only

b)

ocean drifters

c)

crustaceans

d)

microalgae

42.

Which part of seaweed can photosynthesize?

a)

stipe

b)

blades

c)

thallus

d)

bladder

43.

which algae organelle can synthesize and store starch?

a)

pyrenoid

b)

polysaccharide

c)

phycobillin

d)

carageenan

44.

Why is phytoplankton/seaweed/kelp important to humans?

a)

food

b)

byproducts are used in food

c)

skeltons are fossil fuel - oil and gas

d)

process CO2 and create O2

e)

All of the above

45.

Which products contains seaweed?

a)

cosmetics

b)

dairy products - icecream, processed cheeses, yogurts

c)

fertilizers

d)

toothpaste, shampoos, etc.

e)

All of these

Similar Resources on Wayground

Science Assessment Review

45 questions

Science Assessment Review

quiz

Worksheet

•

KG - University

PSYCHOLOGY UNIT 5: "Nervous system" REVIEW

40 questions

PSYCHOLOGY UNIT 5: "Nervous system" REVIEW

quiz

Worksheet

•

11th - 12th Grade

Psych Research Review

43 questions

Psych Research Review

quiz

Worksheet

•

11th - 12th Grade

APES Unit 3 Review

43 questions

APES Unit 3 Review

quiz

Worksheet

•

9th - 12th Grade

Med Terms Chapter 2

50 questions

Med Terms Chapter 2

quiz

Worksheet

•

9th - 12th Grade

Earth, Sun, and Moon Phases Review

43 questions

Earth, Sun, and Moon Phases Review

quiz

Worksheet

•

8th - 12th Grade

Topo Maps & Symbols

49 questions

Topo Maps & Symbols

quiz

Worksheet

•

KG - University