Chapter 16 Test

Question 1

Morning glories open in the morning and closet at night. This is an example of

Answer 1

circadian rhythm

Question 2

All the brook trout living in Sideling Hill Creek are an example of a _________

Answer 2

population

Question 3

An ecologist should consider these factors before introduction a new species into a different ecosystem

Answer 3

• how the new species will affect other organisms
• how other organisms will affect the new species
• how abiotic factors will affect the new species
• how the new species will affect the abiotic factors

Question 4

Organisms that manufacture their own food and supply usable energy to other organisms

Answer 4

Producers

Question 5

A period of inactivity in plants

Answer 5

dormancy

Question 6

Describes organisms that are active at night

Answer 6

Nocturnal

Question 7

Changes in an ecosystem that takes place once per year

Answer 7

season rhythms

Question 8

Individual plants that can survive year after year

Answer 8

perennials

Question 9

Changes in an ecosystem that takes place every 24 hours

Answer 9

Circadian rhythm

Question 10

The internal clock that controls many organisms’ daily rhythms

Answer 10

biological clock

Question 11

The ecosystem of a pond would include:

Answer 11

• sunlight
• Paramecium caudate
• the water temperature

Question 12

Hibernation includes

Answer 12

• lowered body temperature
• slowed metabolism
• seasonal rhythms

Question 13

Cellular respiration takes place in _________

Answer 13

all organisms

Question 14

A chipmunk hibernating through the cold winter is an example of this

Answer 14

the abiotic environment affecting the biotic community

Question 15

A factor in a habitat that restricts the growth or existence of an organism is known as this

Answer 15

limiting factor

Question 16

These two major biological processes that drive carbon and oxygen cycles are

Answer 16

photosynthesis and cellular respiration

Question 17

The abiotic environment of an ecosystem may contain all of these

Answer 17

• substrate
• water
• light

Question 18

Plants that survive the winter only as seeds are ________

Answer 18

annuals

Question 19

The study of organisms in their habitats

Answer 19

ecology

Question 20

A limited area in which living and nonliving things interact

Answer 20

ecosystem

Question 21

All the nonliving factors in an ecosystem

Answer 21

abiotic environment

Question 22

All the living organisms in an ecosystem

Answer 22

biotic community

Question 23

An area where an organism lives

Answer 23

habitat

Question 24

An organism’s role or function in an ecosystem

Answer 24

niche

Question 25

An ecosystem that has a large amount of water

Answer 25

aquatic

Question 26

Decaying plant and animals materials

Answer 26

humus

Question 27

The continuous movement of water from the atmosphere to the ground and back to the atmosphere

Answer 27

water cycle

Question 28

One who studies the effects of outside factors on an environment

Answer 28

ecologist

Question 29

Small plants and algae in the early stages of changes in the biotic community

Answer 29

pioneer species

Question 30

Precipitation that enters the soil

Answer 30

groundwater

Question 31

Migration and hibernation are to seasonal rhythm as nocturnal and diurnal are to _____________

Answer 31

circadian rhythm

Question 32

One factor ecologists often have trouble determining the effect of ________ _______ on an ecosystem

Answer 32

outside factors

Question 33

What plays an important role in the nitrogen cycle

Answer 33

Bacteria

Question 34

The movement of water from earth to the atmosphere

Answer 34

evaporation

Question 35

Biochemical cycles occur in

Answer 35

both aquatic ecosystems and biotic ecosystems

Question 36

Species ______ adapt to their habitat by evolving new characteristics

Answer 36

do NOT

Question 37

This is a limited area in which living and nonliving things interact. Examples would an aquarium, a mountain valley, or a pond

Answer 37

ecosystem

Question 38

What an organism does. An example is an animal that chases another animal and eats it

Answer 38

niche

Question 39

All the living organisms in an ecosystem

Answer 39

biotic community