Aquatic Habitats Answers

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1
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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

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 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
12

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
14

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
17

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
18

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.
19

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

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