Freshwater and Marine Biomes Answers

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1
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Temperatures in ponds and lakes vary by season.

A
T
B
F
2
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Which of the following phrases describes a typical river mouth?

A
clearer water with high levels of oxygen
B
decreased vegetation and lower oxygen levels
C
increased species diversity
D
high levels of vegetation
3

Saltwater fish constantly drink water but still excrete concentrated urine to compensate for the water loss. They also have gills to help excrete excess salts. Conversely, freshwater fish absorb salt from their surroundings using their gills and their bodies reabsorb salt from their urine. This describes how salt- and freshwater fish _______.

A
use their gills to drink
B
keep the salinity levels even in their aquatic environments
C
have adapted to deal with osmosis
D
have evolved behavior patterns to match their physiology
4

Understanding the salinity of aquatic environments is unimportant in understanding the overall ecosystem.

A
T
B
F
5

Which of the following is not an example of a wetland?

A
estuary
B
bog
C
swamp
D
marsh
6

Which of the following did not allow researchers to further explore below the ocean’s surface?

A
ROV’s
B
Alvin
C
Palomares
D
Bathysphere
7

An estuary is _______.

A
a freshwater biome
B
an area with a low concentration of minerals and nutrients
C
characterized by deep water
D
an ecotone
8

Limnetic, profundal, littoral, and benthic have what in common?

A
They refer to the upper-level zones found in salt- and freshwater ecosystems.
B
They are all zones found in freshwater systems.
C
They refer to the lower-level zones found in salt- and freshwater ecosystems.
D
They are all zones found in saltwater systems.
9

What discovery was made by Alvin?

A
over 4000 new species of marine life
B
hydrothermal vents
C
the Aqualung
D
the temperature of different parts of the ocean
10

Organisms that live in freshwater and marine biomes have developed unique adaptations that aid in their survival. Which of the following adaptations would be more useful for an animal in a marine biome than for an animal in a freshwater biome?

A
flippers and flattened tails
B
smooth, nearly furless body
C
streamlined body
D
tolerance to high levels of salinity
11

Which of the following organisms lives near the surface of aquatic biomes because it needs sunlight to survive?

A
phytoplankton
B
zooplankton
C
sturgeon
D
manatee
12

Researchers aboard the H.M.S. Challenger discovered over 4000 new species of marine life.

A
T
B
F
13

Organisms that live in freshwater and marine biomes have developed unique adaptations that aid in their survival. Which of the following adaptations does not help an animal move through the water?

A
streamlined body
B
thick layer of blubber
C
flippers and flattened tails
D
smooth, almost furless body
14

Waste disposal, food source, medicines, medicinal therapies, and aquaculture are all ways _______.

A
humans impact the marine environment
B
humans utilize marine resources
C
marine environments have impacted humans
D
all of the above
15

The littoral is a zone identified in lakes and ponds and is the coldest because it is shallow and lacks nutrients to support life. Please select the best answer from the choices provided

A
T
B
F
16

Unlike lakes, the ocean is separated into zones.

A
T
B
F

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