The many overlapping food chains in an ecosystem make up a(n)

a. feeding level

b. energy pyramid

c. niche

d. food web

d. food web

The step in the water cycle in which water vapor becomes liquid water is

a. precipitation

b. condensation

c. nitrogen fixation

d. recycling

b. condensation

The study of where organisms live is called

a. ecology

b. dispersal

c. biogeography

d. climatology

c. biogeography

The very slow movements of the continents is called

a. biogeography

b. continental drift

c. dispersal

d. creep

b. continental drift

Which of these consumers is a herbivore?

a. spider b. lion

c. deer

d. snake

c. deer

An organism that makes it’s own food is called

a. scavenger

b. consumer

c. decomposer

d. producer

d. producer

Consumers that eat both plants and animals are called

a. carnivores

b. herbivores

c. omnivores

d. scavengers

c. omnivores

In which process do producers use carbon from carbon dioxide to produce other carbon-containing molecules?

a. nitrogen cycle

b. water cycle

c. precipitation

d. photosynthesis

d. photosynthesis

If a kestrel eats a mouse that eats grass, the kestrel is a(n)

a. second-level consumer

b. decomposer

c. first-level consumer

d. producer

a. second-level consumer

What do producers release as a result of photosynthesis?

a. nitrogen

b. hydrogen

c. carbon dioxide

d. oxygen

d. oxygen

Which of these is NOT an example of precipitation?

a. groundwater

b. rain

c. snow

d. hail

a. groundwater

In an energy pyramid, which level has the most available energy?

a. second-level consumer

b. third-level consumer

c. producer level

d. first-level consumer

c. producer level

The first organism in a food chain is always a(n)

a. producer.

b. consumer.

c. carnivore.

d. herbivore.

a. producer

Organisms that were brought by humans from one part of the world to another are

a. native species

b. parasites

c. exotic species

d. endangered species

c. exotic species

The typical weather pattern in an area over a long period of time is called

a. climate

b. precipitation

c. weather

d. dispersal

a. climate

Some bacteria that fix nitrogen live in bumps on the roots of certain plants. These bumps are called

a. legumes b. starches

c. nodules d. droplets

c. nodules

Vultures, which feed on the bodies of dead organisms, are

a. first-level consumers

b. scavengers

c. producers

d. herbivores

b. scavengers

In which process do molecules of liquid water absorb energy and change into the gas state?

a. evaporation

b. condensation

c. precipitation

d. recycling

a. evaporation

The ocean prevents the Australian kangaroo from dispersing throughout the world. The ocean is an example of which type of limit to dispersal?

a. competition b. climate

c. a physical barrier

d. an exotic species

c. physical barrier

Which of the following is NOT an example of dispersal?

a. a squirrel living in a forest on a mountain

b. a dog bringing home sticky plant burs on its fur

c. an insect being carried down a river on a floating leaf

a. a squirrel living in a forest on a

mountain

Organisms that capture the energy of sunlight to make food are called producers.

A. TrueB. False

A. True

Second level consumers may be either carnivores or omnivores.

A. TrueB. False

A. True

In an energy pyramid, the available energy increases at each feeding level compared to the level below.

A. TrueB. False

B. False

Dandelions are a native species in the U.S. because they were brought from Europe by the colonists.

A. TrueB. False

B. False