multicellular seaweed

What is the most productive cold-water marine habitat?

• high tide zone

• low tide zone

• intertidal zone

• kelp bed

Kelp are a type of __ algae.

• green

• brown

• red

• blue

What pigment makes brown algae brown?

• chlorophyll

• phycoblins

• carotenoids

• fucoxanthins

What part of the kelp does photosynthesis?

• stipe

• holdfast

• blades

• bladder/pneumatocyst

What keeps the blades afloat?

• stipe

• holdfast

• blades

• bladder/pneumatocyst

What pigment makes red algae red?

• chlorophyll

• phycoblins

• carotenoids

• fucoxanthins

Red algae tend to live near the surface of the water.

• true

• false

Organisms that eat seaweed are __.

• herbivores

• carnivores

• omnivores

Thick cell walls help algae avoid __.

• being eaten

• dark

• dessication/drying out

During strong storms the stipes of seaweed can break off leaving only the __ behind.

• pneumatocysts

• holdfast

• bladder

• blades