Aquatic Ecosystems

Place the zones of lakes and ponds in the correct order from shallowest (left side) to deepest (right side). .

Groups:

(a) Shallow Zone

,

(b) Middle Zone

,

(c) Deepest Zone

• Profundal Zone

• Limnetic Zone

• Littoral zone

Place the zones of the open ocean biome in the correct order from shallowest (1) to deepest (4). Also, match the description with each zone.

Groups:

(a) 1 Shallowest

,

(b) 2

,

(c) 3

,

(d) 4-Deepest

• Zone with the most sunlight.

• Photic Zone

• Very cold zone. Hydrothermal vents are present here.

• Abyssal Zone

• Benthic Zone

• Zone that receives no sunlight. It is cold but mixes with warm and cold currents

• Area along the ocean floor, made of sand, silt, and dead organisms.

• Aphotic Zone

Which of the following does is NOT part of a freshwater ecosystem?

• Lakes

• Ponds

• Rivers

• Ocean

This is a fast-moving body of water that flows in one direction.

• River

• Lake

• Pond

• Ocean

This is a freshwater, non-moving/flowing body of water

• River

• Lake

• Stream

• Ocean

This is a narrow band where the ocean meets the land

• River

• Lake

• Stream

• Intertidal Zone

This lake zone receives is where water meets land. It receives lots of sunlight and contains many producers.

• Littoral Zone

• Limnetic Zone

• Profundal Zone

This lake zone receives lots of sunlight, is dominated by plankton, but also has high fish populations.

• Littoral Zone

• Limnetic Zone

• Profundal Zone

This lake zone receives very little or no sunlight depending on the depth. It is colder, contains less oxygen, and the species are limited.

• Littoral Zone

• Limnetic Zone

• Profundal Zone

Which intertidal zone is dry most of the time?

• Spray zone

• High-tide zone

• Mid-tide zone

• Low-tide zone