Marine Ecosystems

Why would benthic (bottom dwelling) organisms be colored red?

• to been seen more easily by a mate

• to absorb light energy

• to have a bad taste, discouraging predators

• to be camouflaged in the deep ocean

Which of the following are considered abiotic factors that affect marine environments?

• predation

• competition

• salinity

• parasitism

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Oyster beds have a major ecological role in salt marshes. What is it?

• flood control

• bacteria collection

• cutting tourist feet

• filtering water

Tags

NGSS.MS-LS2-3

What is an adaptation most useful to a sandy beach animal?

• attachment

• floating

• burrowing

• camouflage

Tags

NGSS.MS-LS4-4

Why is it important to preserve sea oat plantings on sand dunes?

• they provide consumable seeds

• leaves are a habitat for small animals

• they regulate the sand temperature

• roots stabilize the soil

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Where would you find a coral reef?

• shallow tropical regions

• shallow temperate zones

• shallow polar regions

• all of these

Why are zooanthellae important?

• they prey on zooplankton

• they provide food and oxygen for corals

• they erode nutrients for algae use

• they contain digestive enzymes

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Penguins live in the _____________.

• Arctic

• Antarctic

Polar bears live in the _____________.

• Arctic

• Antarctic

Reindeer live in the _____________.

• Arctic

• Antarctic