MrPhyzyx: Aquatic Biomes

Question 1

What causes most coastal pollution in the United States?

Accepted Answer

industrial waste and sewage

Question 2

Which ecosystem has the highest level of salinity

Accepted Answer

salt marsh

Question 3

Organisms that live in estuaries must adapt to changes in

Accepted Answer

water level and salinity.

Question 4

In an estuary, when fresh water meets salt water, currents form and cause

Accepted Answer

nutrients to fall to the bottom.

Question 5

What is the source of most ocean pollution?

Accepted Answer

activities on land

Question 6

The type of plankton that produces most of the food in an aquatic ecosystem is called

Accepted Answer

phytoplankton

Question 7

Which of the following statements is not correct?

Accepted Answer

Rivers move faster, and their oxygen decreases near ocean.

Question 8

Which factor influences where an organism lives in an aquatic ecosystem?

Accepted Answer

all of these

Question 9

Which aquatic ecosystem is adversely affected by runoff?

Accepted Answer

all of these

Question 10

Pollutants that enter estuaries break down over time, yet they are still a problem because

Accepted Answer

the pollutant volume, more than time, that harms estuaries.

Question 11

Which of the following is not a threat to coral reefs?

Accepted Answer

zooplankton

Question 12

In the _______ zone, the water is cool and dark.

Accepted Answer

benthic

Question 13

Mangrove swamps provide breeding and feeding grounds for roughly _____ animal species.

Accepted Answer

2000

Question 14

One way in which wetlands control flooding is by

Accepted Answer

absorbing water from rivers.

Question 15

In which aquatic ecosystems are both littoral and benthic zones most likely found?

Accepted Answer

lake

Question 16

The harvesting of coral damages coral reef ecosystems because

Accepted Answer

coral grows too slowly.

Question 17

Photosynthetic organisms are found mainly in shallow water due to the availability of

Accepted Answer

sunlight

Question 18

Swamps are commonly found on

Accepted Answer

flat, poorly drained land.

Question 19

The majority of marine organisms are found in

Accepted Answer

shallow, coastal waters

Question 20

Which of the following is not characteristic of salt marshes and mangrove swamps?

Accepted Answer

Both are dominated by marsh grasses.

Question 21

In estuaries, fresh water and salt water mix, forming a(n)

Accepted Answer

nutrient trap

Question 22

What distinguishes nekton from benthos?

Accepted Answer

One swims freely & one lives attached to a hard surface.

Question 23

Which is not an important advantage for aquatic organisms living near the surface of a lake?

Accepted Answer

presence of decomposing organisms

Question 24

In the ________ zone, aquatic life is diverse and abundant.

Accepted Answer

littoral

Question 25

All of the following are examples of saltwater ecosystems except

Accepted Answer

the Florida Everglades.

Question 26

Which of the following is not a threat to coral reefs?

Accepted Answer

phytoplankton

Question 27

Two threats to ocean ecosystems are

Accepted Answer

All of these

Question 28

As they flow down a mountain to flatter ground, rivers generally become

Accepted Answer

All of these

Question 29

Estuaries are extremely productive because they receive fresh nutrients from _____ and _____.

Accepted Answer

rivers, oceans

Question 30

Why doesn’t photosynthesis occur in deep ocean water?

Accepted Answer

There is no sunlight.

Question 31

What adaptation prevents phytoplankton from sinking into deep waters?

Accepted Answer

flagella

Question 32

Estuaries are productive ecosystems because they constantly receive nutrients from

Accepted Answer

rivers and oceans.

Question 33

Water _____ sunlight; photosynthesis in lakes and oceans does not occur below 100 meters.

Accepted Answer

absorbs

Question 34

Estuaries...

Accepted Answer

are ecosystems with both fresh water & salt water.

Question 35

Most of the nutrients in an arctic ecosystem come from

Accepted Answer

the ocean.

Question 36

Which of the following is not an environmental function of wetlands?

Accepted Answer

increasing runoff

Question 37

In which aquatic zone would you be likely to find cattails and reeds?

Accepted Answer

littoral

Question 38

What are the two main types of freshwater wetlands?

Accepted Answer

marshes and swamps

MrPhyzyx: Aquatic Biomes

Questions 38

MrPhyzyx: Aquatic Biomes

Questions 38