Estuaries are commercially important because

fish species that people buy and sell live in estuaries.

The nutrient availability of aquatic ecosystems is the

amount of nitrogen, oxygen, and other elements dissolved in the water.

Climate is a global factor that produces

a wide range of environmental conditions that shape communities.

Which of the following statements is NOT true about the open ocean?

open ocean begins at the low-tide mark & extends to the cont. shelf.

extends to a depth of about 200 meters.

Are you likely to find zooplankton in the aphotic, benthic zone of an ocean?

No. Zooplankton feed on phytoplankton & they cant photosyn. in the dark.

Which is one way a freshwater wetland differs from a lake or pond?

Water does not always cover a wetland as it does a lake or pond.

Which of the following occurs during the ecological succession of an ecosystem?

Living organisms modify their environment a little at a time.

The North Pole and the South Poles are

not classified into major biomes.

Which aquatic ecosystem is likely to be the warmest?

a coastal ocean system at a temperate latitude

Which of the following is a factor that makes estuaries unique?

They have a lot of biomass but not a large variety of species.

studbud

Bio Chap. 4 Part 2

24 termsStudBud Administration461 plays

Imported from external platform

Flashcards24 cardsFPractice quizPHost liveL

Questions 24

Answers

1
Estuaries are commercially important because
lumber trees grow in estuaries.
tall buildings can be built in estuaries.
fossil fuels are found in estuaries.
fish species that people buy and sell live in estuaries.
2
Which of the following is NOT a freshwater ecosystem?
a lake
an estuary
a stream
a river
3
A wetland that contains a mixture of fresh water and salt water is called
a pond.
a stream.
a river.
an estuary.
4
The nutrient availability of aquatic ecosystems is the
amount of nitrogen, oxygen, and other elements dissolved in the water.
number of different animal species living in the water.
amount of rainfall the water receives.
number of other organisms present in the water.
5
Which landforms are not classified into a major biome?
islands
prairies
mountain ranges
coastlines
6
Which organism lives where it is sometimes submerged, routinely exposed to air, heat, battering waves, and currents?
whale
dolphin
barnacle
squid
7
Climate is a global factor that produces
Earth’s unique ocean and atmosphere.
solar energy within the atmosphere.
a wide range of environmental conditions that shape communities.
the shape and elevation of landmasses.
8
Which biome is characterized by very low temperatures, little precipitation, and permafrost?
temperate forest
tundra
desert
tropical dry forest
9
Figure 4–2 shows succession in an ecosystem. What organisms are found in the climax community for this ecosystem?
volcanoes and soil
trees and shrubs
lichens and moss
weeds and grasses
10
Which of the following statements is NOT true about the open ocean?
open ocean begins at the low-tide mark & extends to the cont. shelf.
Organisms in the deep ocean are exposed to frigid temps and total darkness.
The open ocean has low levels of nutrients.
Most photosynth activity occurs in the open ocean within the photic zone
11
Which biome has long cold winters and short summers, and is home to conifers?
savanna
tundra
boreal forest
temperate woodland
12
Freshwater ecosystems that often originate from underground sources in mountains or hills are
estuaries.
wetlands.
rivers and streams.
lakes and ponds.
13
A tropical rain forest may be unable to be returned to its original climax community after which of the following distur
clearing and farming
burning of a forest fire
flooding after a hurricane
volcanic eruption
14
The photic zone
extends to a depth of about 200 meters.
is where chemosynthetic bacteria are the producers.
is deep, cold, and permanently dark.
extends to the bottom of the open ocean
15
Which is a factor that could interrupt the progress of succession?
different animals appearing at each stage
colonization of surfaces by lichens
another natural disturbance
long-term fluctuations in climate
16
Are you likely to find zooplankton in the aphotic, benthic zone of an ocean?
No. Zooplankton feed on phytoplankton & they cant photosyn. in the dark.
Yes. Zooplankton can photosynthesize in the dark.
Yes. Zooplankton are chemosynthetic autotrophs.
No. Zooplankton cant chemosynthesize in the dark w/o oxygen in the water.
17
Which is one way a freshwater wetland differs from a lake or pond?
Water does not always cover a wetland as it does a lake or pond.
Water flows in a lake or pond but never flows in a wetland.
Wetlands are nesting areas for birds, but lakes and ponds are not.
Wetlands are salty, but lakes and ponds are fresh
18
Which two biomes have the least precipitation?
boreal forest and temperate woodland and shrubland
tropical savanna and tropical dry forest
tundra and desert
tropical rain forest and temperate grassland
19
Which of the following occurs during the ecological succession of an ecosystem?
An ecosystem reaches a final, unchanging stage.
Parts of communities split off to form new communities.
Animals move out of the ecosystem until succession is complete.
Living organisms modify their environment a little at a time.
20
The North Pole and the South Poles are
part of aquatic ecosystems.
not classified into major biomes.
not home to any animals.
classified as tundra biomes.
21
Which aquatic ecosystem is likely to be the warmest?
an intertidal zone in a polar region
a coastal ocean system at a temperate latitude
an open ocean system near Antarctica
a benthic system in the middle of the ocean
22
animal found in the biome that has cold to mod winters, warm summers, and fertile soils; and is home to a variety of veg
caribou
whitetail deer
polar bear
iguana
23
An example of a human-caused disturbance is
wildfires.
growing lichens.
a hurricane.
forest-clearing.
24
Which of the following is a factor that makes estuaries unique?
They contain both phytoplankton and zooplankton.
They are very deep and dark but contain a lot of producers.
They are found in mountain ranges and are formed by melting snow.
They have a lot of biomass but not a large variety of species.

Bio Chap. 4 Part 2 Flashcards | StudBud