Aquatic Ecosystems Review

What do the dotted lines in the image represent?

• electrons

• hydrogen bonds

• carbon dioxide

What is the word for the attraction between water molecules that causes them to stick together?

• adhesion

• cohesion

• polar

Which of these benefits do wetlands provide to the ecosystem?

• control flooding

• keep wildlife away

• prevent wind damage

What type of wetland is shown in the image?

• swamp

• estuary

• marsh

Which type of aquatic ecosystem contains salt water?

• river

• coral reef

• lake

Match the followingMatch each cause to the effect it has on the Chesapeake Bay Watershed.

• humans collecting too many fish

• tourists do not come to the Cheasapeake Bay

• plowing a form field

• water in watershed becomes polluted

• farmers spread fertilizer on fields

• population of fish fets smaller

• polluted water looks unappealing

• soil washes away

What happens to pollution that washes into a stream?

• the pollution evaporates into the atmosphere

• the pollution disappears

• the pollution travels downstream through the watershed.

Which of these is a community found in aquaponics?

• all of the koi

• the plant and bacteria populations put together

• the fish and the water they swim in

If there were no light in the photic zone what would happen?

• With no light there would be no photosynthesis and all the plants would die

• With no light there would be no photosynthesis and plants will grow.

• With no light nothing would change.