Rocky Intertidal Zones

The "clam up" strategy can be used by an organism to do what?

• keep water/moisture inside of their bodies

• maintain body temperature

• cool off their bodies

• access more food sources

Competition for which resource is a dominant factor in the rocky intertidal zone?

• food

• light

• oxygen

• space

Tags

NGSS.MS-LS2-1

Which is considered a keystone predator in the middle intertidal zone?

• birds

• crabs

• limpets

• sea stars

Tags

NGSS.MS-LS2-4

The lower limit of the intertidal zone is the:

• Average high tide.

• Average middle tide.

• Lowest low tide.

• Lowest edge of the rocky substrate.

Besides fluctuations in salinity and water levels, intertidal organisms must also withstand wide variations in:

• Temperature.

• Light level.

• Sediment deposition.

• Current velocity.

Tags

NGSS.MS-LS1-5

Vertical zonation on rocky shores is mostly the result of differences in tolerance to:

• Wave action

• Exposure.

• Predation.

• Light.

Tags

NGSS.MS-LS2-2

Holes, cracks, or crevices where seawater collects as the tide goes out.

• tide pools

• tide zones

• tidal waves

• tidal shore

Only exposed during low tide; contains the highest biodiversity

• High tide

• Medium tide

• Low tide

The Splash Zone can be described as

• Lies between medium and low tide

• Lies between high and low tide

• Area above the high tide zone in which animals survive by getting splashed by the waves.

• Never receives water

Species living in the Intertidal Zone include

• Sharks

• Whales

• Sea Stars

• Jellyfish