Chapter 7

Question 1

Wetland dominated by non woody plants

Answer 1

Marsh

Question 2

Precipitation that can carry pollutants into a river ecosystem

Answer 2

Runoff

Question 3

Amount of dissolved salt in water

Answer 3

Salinity

Question 4

Wetland dominated by woody plants

Answer 4

Swamp

Question 5

Area where fresh water mixes with salt water

Answer 5

Estuary

Question 6

Limestone ridges built by tiny animals

Answer 6

Coral Reefs

Question 7

Located near the bottom of a pond or lake

Answer 7

Benthic Zone

Question 8

Organisms that break down dead organisms

Answer 8

Decomposers

Question 9

Increase in nutrients in an aquatic ecosystem

Answer 9

Eutrophication

Question 10

Aquatic zone found near the shore

Answer 10

Littoral Zone

Question 11

Threat against river ecosystems

Answer 11

Dam

Question 12

Threat against marine organisms

Answer 12

Overfishing

Question 13

Estuaries are productive ecosystems because they constantly get nutrients from

Answer 13

Rivers and Oceans

Question 14

What is a factor that influences where an organism lives in an equation ecosystem

Answer 14

Sunlight, temperature, and nutrient availability

Question 15

what aquatic ecosystem has both littoral and ethnic zones

Answer 15

Lake

Question 16

What is the source of most ocean pollutants

Answer 16

Activities on land

Question 17

The florida everglades are a

Answer 17

freshwater ecosystem

Question 18

One way wetlands control flooding is

Answer 18

absorbing water from rivers

Question 19

What is not a threat to coral reefs

Answer 19

Growth of Algae

Question 20

Could algal bloom occur at a headwater?

Answer 20

No, because the river would push the algae downstream and also it would down some of the pollution out

Question 21

Plants and animals like sandy beaches more? Agree or Disagree

Answer 21

Disagree, because it varies on the species. Some species need the protection the rocks provide. Also, there is a lot of things to anchor on

Question 22

Human activities do not threaten coral reefs? Agree or Disagree

Answer 22

Disagree, because when we pollute water we can kill all of the nutrients in the water affecting them. Also, carbonic acid breaks away the limestone. Lastly, warming water break the bond between the algae and coral and allow disease to enter the ecosystem more easily

Question 23

Most photosynthesis occurs in the upper 100 meters of the ocean? Agree or Disagree

Answer 23

Agree, because after 100 meter very little sunlight comes through

Question 24

Why is a toxic chemical spill on land potentially harmful to animals that live in the ocean?

Answer 24

Because, when runoff occurs the chemical can enter the aquatic ecosystem and damage the animals that live their.

Question 25

How can Eutrophication be accelerated?

Answer 25

By adding fertilizer and manure