Answers26-27 - C - RUSD Environmental Science S1Land Habitats

Aquatic Habitats Answers

13 verified answers1 views
1
Free Preview

The most productive marine habitats are on the seafloor. Please select the best answer from the choices provided

A
T
B
F
2
Free Preview

Which of the following explains the inversion of the aquatic pyramid of biomass?

A
high phytoplankton turnover rate
B
slow aquatic predator metabolisms
C
small number of aquatic consumers
D
high energy content of phytoplankton
3

Which of the following aquatic environments would not freeze in winter?

A
lake
B
pond
C
salt marsh
D
stream
4

The principle characteristic distinguishing marine and freshwater ecosystems is _______.

A
temperature
B
presence of corals
C
presence of fish
D
dissolved salt
5

Which statement does not describe freshwater and saltwater ecosystems accurately?

A
Both support a large number of plants and animals adapted for aquatic living.
B
The primary producers in saltwater and freshwater ecosystems are amoebas.
C
Freshwater ecosystems have a very low salt concentration and include ponds, lakes, streams, wetlands, and rivers.
D
Saltwater ecosystems have a high salt concentration and include oceans, coral reefs, and estuaries.
6

Amoebas prey upon algae in aquatic environments.

A
T
B
F
7

Algae uses all the energy in sunlight to perform photosynthesis.

A
T
B
F
8

If a stationary body of water has a constant temperature from top to bottom it is most likely a(n) _______.

A
lake
B
pond
C
ocean
D
lagoon
9

Which is not a similarity between terrestrial and aquatic pyramids?

A
both have producers as the base that can harvest the sun’s energy to make food
B
both types still consist of producers, herbivores, and carnivores
C
both types of energy pyramids contain the same species of organisms
D
both types contain a decreasing number of organisms going from the bottom to the top of the pyramid
10

Which habitat would have the least variation in its salinity?

A
salt marsh
B
mangrove forest
C
lake
D
estuary
11

Which level of consumer has access to the smallest supply of energy?

A
primary
B
secondary
C
tertiary
D
quaternary
12

Which of the following are not extremophiles?

A
Pompeii worms
B
bacteria in boiling hot springs
C
fish living in open oceans
D
fish living in water below freezing
13

Which of the following are not extremophiles?

A
Pompeii worms
B
bacteria in boiling hot springs
C
fish living in open oceans
D
fish living in water below freezing
14

Less than 0.1% of the energy in a food chain generally makes it from the sun to decomposers.

A
T
B
F
15

Which statement does not describe freshwater and saltwater ecosystems accurately?

A
Both support a large number of plants and animals adapted for aquatic living.
B
The primary producers in saltwater and freshwater ecosystems are amoebas.
C
Freshwater ecosystems have a very low salt concentration and include ponds, lakes, streams, wetlands, and rivers.
D
Saltwater ecosystems have a high salt concentration and include oceans, coral reefs, and estuaries.
16

Which level of consumer has access to the smallest supply of energy?

A
primary
B
secondary
C
tertiary
D
quaternary
17

Which marine habitats would have the least access to primary producers?

A
salt marshes and estuaries
B
coral reefs and lagoons
C
mangroves and intertidal zones
D
deep sea and sea floor
18

Less than 0.1% of the energy in a food chain generally makes it from the sun to decomposers.

A
T
B
F
19

If a stationary body of water has a constant temperature from top to bottom it is most likely a(n) _______.

A
lake
B
pond
C
ocean
D
lagoon
20

Which statement about how organisms depend on abiotic factors in an aquatic ecosystem is not true?

A
most living organisms can survive in environments with several different temperature and salinity levels
B
both aquatic plants and animals depend on dissolved oxygen for respiration
C
abiotic factors that impact an aquatic ecosystem include temperature, salinity, flow, and dissolved oxygen in the water
D
abiotic factors of an aquatic ecosystem determine what kind of life can exist in that environment

Did you find these answers helpful?

More from this Course

Quiz
14 verified answers

Land Habitats

Quiz
18 verified answers

The Tundra

Quiz
17 verified answers

Alpine and Taiga Biomes