Marine Science Primary Producers

The main types of seaweed

• green seaweed

• brown seaweed

• red seaweed

• yellow seaweed

The root-like structures of seaweed

• thallus

• blades

• holdfast

• stipes

The body of seaweed

• thallus

• blades

• holdfast

• stipes

The stem-like structures of seaweed

• thallus

• blades

• holdfast

• stipes

Coralline algae are hard because their thallus is composed of

• calcium carbonate

• carbonic acid

• cellulose

• keratin

Green seaweeds store excess energy as

• starch

• cellulose

• chlorophyll

• calcium carbonate

The primary producers in marine ecosystems are mainly composed of which organisms?

• Phytoplankton

• Zooplankton

• Fish

• Coral

Tags

NGSS.MS-LS1-6

Which of the following is a characteristic of phytoplankton?

• They are animals

• They perform photosynthesis

• They are decomposers

• They are predators

Tags

NGSS.MS-LS1-6

What pigment do phytoplankton primarily use for photosynthesis?

• Chlorophyll

• Carotene

• Xanthophyll

• Anthocyanin

Tags

NGSS.MS-LS1-6

Which of the following is a type of phytoplankton?

• Diatoms

• Jellyfish

• Seaweed

• Crabs