Unit 7-Beneath the Tides Practice Test

Front

What is a keystone predator in the middle intertidal zone?

Back

A keystone predator is a species that has a disproportionately large effect on its environment relative to its abundance. In the middle intertidal zone, sea stars are considered keystone predators because they prey on mussels, which helps maintain species diversity.

Front

What are tide pools?

Back

Tide pools are holes, cracks, or crevices in the intertidal zone where seawater collects as the tide goes out. They provide a unique habitat for various marine organisms.

Front

Which intertidal predator is known to prey on mussels?

Back

Sea stars are known to prey on mussels in the intertidal zone, playing a crucial role in controlling mussel populations.

Front

What is vertical zonation in the intertidal zone?

Back

Vertical zonation refers to the pattern of species living in distinct horizontal bands on the rocky shore, each adapted to specific environmental conditions such as exposure to air and water.

Front

What does the 'clam up' strategy refer to?

Back

The 'clam up' strategy is a behavior used by some marine organisms, such as clams, to keep water and moisture inside their bodies, helping them survive during low tide.

Front

What role do sea stars play in maintaining biodiversity in the intertidal zone?

Back

Sea stars help maintain biodiversity by preying on dominant species like mussels, preventing them from monopolizing space and resources, thus allowing other species to thrive.

Front

What adaptations do organisms in tide pools have for survival?

Back

Organisms in tide pools have adaptations such as the ability to tolerate changes in salinity, temperature, and moisture levels, as well as mechanisms to avoid desiccation.

Front

How do tidal zones affect marine life?

Back

Tidal zones create distinct habitats that influence the distribution and behavior of marine life, as organisms must adapt to varying conditions of exposure to air and water.

Front

What is the significance of the intertidal zone in marine ecosystems?

Back

The intertidal zone is significant because it serves as a transition area between land and sea, supporting diverse ecosystems and providing critical habitats for many marine species.

Front

What factors influence the distribution of species in the intertidal zone?

Back

Factors influencing species distribution in the intertidal zone include tidal patterns, wave action, substrate type, and competition for space and resources.