Macroalgae

The formal name for seaweed; multicellular algae

• seagrass

• thallaus

• macroalgae

• microalgae

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

• red

• brown

• green

• blue

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

Why are floats/bladders 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

Tags

NGSS.MS-LS1-6

What do seaweeds such as giant kelp provide beyond being a food source (primary producer)?

• they protect coral reefs

• they take salt out of the water

• they create a habitat for many organisms

Tags

NGSS.MS-LS2-2

This part of a seaweed anchors it to the bottom by attaching to rocks.

• Thallus

• Stipe

• Pneumatocysts

• Holdfast

These are the gas-filled bladders that help seaweeds float to the surface so that they can get more sunlight.

• Blades

• Pneumatocysts

• Stipe

• Holdfast

Tags

NGSS.MS-LS1-6

What are the three types of algae?

• Green, Blue-green, yellow

• Brown, yellow, red

• brown, yellow, green

• green, brown, red

What are the stems of kelp called?

• blades

• stipes

• holdfast

• stem

What is the largest type of seaweed?

• sargassum

• kelp

• sea lettuce

• nori

• stipe

• blade

• holdfast

• pneumatocyst