Plankton and Seaweed

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

• Currents

• Waves

• Tides

• All of these

What is one reason that phytoplankton are important?

• they clean the water

• they make oxygen

• they are drifting animals

• they make the water warmer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

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

• A Spring
• A Migration
• A Bloom
• A Flower

Tags

NGSS.MS-LS1-6

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

• Dinoflagellate

• Diatoms

• Coccolithophores

• Cyanobacteria

How are seaweed classified or sorted in to groups?

• By their pigment

• By their length

• By the water they are found in

• By their toxins

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

• diatoms and coccolithophores

• diatoms and dinoflagellates

• dinoflagellates and coccolithophores

• cyanobacteria and diatoms

Why are pneumatocysts important for seaweed?

• float closer to the sun to create shade

• float closer to the sun to capture prey

• float closer to the surface to collect oxygen

• float closer to the sun for photosynthesis

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

• coccolithophore

• cyanobacteria

• dinoflagellate

• diatom

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

• Respiration
• Photosynthesis
• Chemosynthesis
• Heterotrophs

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

• holdfast
• thallus
• blade
• stipe