Marine Biomes Test Review

Unlike in terrestrial biomes, the factor limiting photosythesis in marine biomes is

• sunlight

• nutrients

• heat

• salinity

In this zone of the ocean, photosynthesis occurs but at a lower rate than that of cellular respiration

• euphotic zone

• disphotic zone

• aphotic zone

Which colors of light are most able to penetrate deep into the ocean?

• blues and greens

• reds, oranges, and yellows

Saltwater biomes have around ______% salinity, while freshwater biomes have around .1%.

• 3

• 13

• 30

• 50

The amount of saltwater on the earth's surface is vastly larger than the amount of freshwater.

• True

• False

The location in which freshwater and saltwater mix at the mouth of a river is known as a(n)

• intertidal zone

• productivity zone

• euphotic zone

• estuary

In terrestrial biomes, the factor limiting photosynthesis is ________, whereas in marine biomes, it is __________.

• light, oxygen

• carbon dioxide, light

• light, nutrients

• nutrients, carbon dioxide

Which of the following is NOT a characteristic of an organism living in the intertidal zone?

• the ability to be submerged under water

• the ability to photosynthesize with little sunlight

• the ability to securely attach to a substrate

• the ability to tolerate desiccation (drying out)

The portion of the ocean where sunlight is able to penetrate the water is known as

• intertidal zone

• productivity zone

• euphotic zone

• estuary

Which of the following is NOT a condition that would be found in an area of high marine productivity?

• Strong thermoclines

• High levels of nutrients

• Upwelling

• High amounts of phytoplankton