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Unit 2: Marine Biology

Authored by Kaitlin Medeiros

Biology

9th - 12th Grade

Unit 2: Marine Biology
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44 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Light does not reach the bottom of the ocean, yet certain species live there. Which best explains how species on the bottom of the ocean get energy to live?

Algae and bacteria produce energy through photosynthesis.
Hydrothermal vents produce energy through chemical reactions.
Dead plants and animals produce energy through decomposition.
Light comes from the core of the earth.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Another reason algae /phytoplankton are important is because these serve as _____________ to most food chains in the ocean

salinity protection

primary food source

barriers from strong currents/weather systems

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is chemosynthesis?

Where bacteria use light energy to make glucose.
Where plants use light energy to make glucose
Where bacteria use chemical reactions to make glucose

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is one reason that phytoplankton are important? 

they clean the water
they make oxygen
they are food for us
they make the water warmer

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

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

Green TIde
Red Tide
Malaria
Algal Bloom

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

habitats
carbon dioxide
light
all of the above

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

True
False

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