Quiz about Unit 8 Ecology

Question 1

The shrew provides energy for the _______?

Accepted Answer

snake

Answer

cricket

Answer

grasshopper

Answer

frog

Question 2

Which of the following is a herbivore?

Accepted Answer

cricket

Answer

frog

Answer

hawk

Answer

shrew

Question 3

Where do all life forms get their energy?

Accepted Answer

The Sun

Answer

Earth's Core

Answer

Water

Answer

Plants

Question 4

What is this called?

Accepted Answer

Food Chain

Answer

Food Web

Answer

Abiotic Factors

Question 5

All of the living and nonliving things in an area that interact with each other are called a/an ______.

Accepted Answer

ecosystem

Answer

community

Answer

habitat

Answer

population

Question 6

An individual belonging to a specific species

Accepted Answer

Organism

Answer

Biotic

Answer

Community

Answer

Reptile

Question 7

The living part of an ecosystem

Accepted Answer

Biotic

Answer

Abiotic

Answer

Mother Earth

Answer

Flowers

Question 8

The non-living part of an ecosystem

Accepted Answer

Abiotic

Answer

Ocean

Answer

Lava Flow

Answer

Birds

Question 9

Organisms that look similar and can produce fertile offspring

Accepted Answer

Species

Answer

Fish

Answer

Community

Answer

Trees

Question 10

Two or more members of a particular species living and interacting in the same area

Accepted Answer

Population

Answer

Community

Answer

Organisms

Answer

Biosphere

Question 11

Different populations living and interacting with each other in the same area

Accepted Answer

Community

Answer

Biome

Answer

Ecosystem

Answer

Niche

Question 12

What may happen if the snowshoe hare was removed from the food web pictured?

Accepted Answer

The shrew population would decrease due to being only hawk food source.

Answer

The insects in the habitat would increase.

Answer

The willow tree population would decrease.

Answer

Foxes would dies due to no food source.

Question 13

In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?

Accepted Answer

10%

Answer

20%

Answer

80%

Answer

90%

Question 14

Nitrogen fixation processes nitrogen from which of the following sources?

Accepted Answer

atmosphere

Answer

lightning

Answer

fertilizers

Answer

dead plants

Question 15

which symbiosis is this

Accepted Answer

parasitism

Answer

mutualism

Answer

commensalism

Answer

nonalism

Question 16

symbiotic relationship in which both organisms benefit

Accepted Answer

Mutualism

Answer

competition

Answer

nitrogen fixation

Answer

energy pyramid

Question 17

78% of Earth's atmosphere is nitrogen gas. All living things need nitrogen as a part of DNA and RNA. Yet you and I, and other living things, cannot use the nitrogen in our atmosphere directly. One type of organism is responsible for "fixing" nitrogen or helping to put it in a form so other living things can use it. That organism is

Accepted Answer

bacteria.

Answer

fungi.

Answer

plants.

Answer

viruses.

Question 18

How animals get the nitrogen they need

Accepted Answer

from the food they eat

Answer

from the air they breathe

Answer

from the water they drink

Answer

from the Sun

Question 19

How nitrogen is "fixed" into useable form for plants

Accepted Answer

through action of bacteria & lightning

Answer

only through action of bacteria

Answer

only through lightning

Answer

through photosynthesis

Question 20

What is the process of combining nitrogen gas with other elements to make nitrogen into usable compounds?

Accepted Answer

nitrogen fixation

Answer

nitrogen composition

Answer

<p>ammonia</p>

Answer

denitrification

Question 21

What process occurs when dead plant and animal matter decomposes and nitrogen is released back into the atmosphere?

Accepted Answer

Denitrification

Answer

Assimilation

Answer

<p>Fixation</p>

Answer

Ammonification

Question 22

Based on the graph shown, what is the effect of removing a keystone species from an ecosystem?

Accepted Answer

biodiversity goes down

Answer

biodiversity goes up

Answer

biodiversity stays about the same

Answer

not enough information to tell

Question 23

Based on the graph shown, how can you tell sea otters are a keystone species?

Accepted Answer

as sea otter population increases, biodiversity increases

Answer

as the sea otter population decreases, biodiversity increases

Answer

changes in the sea otter population have little effect on biodiversity

Answer

the sea otter population dereases due to the presence of urchins

Question 24

When a specific population grows past the ecosystem's carrying capacity, what happens to the population?

Accepted Answer

Density Dependent limiting factors start to occur resulting in the population going back below carrying capacity.

Answer

Density Independent limiting factors start to occur resulting in the population going farther above carrying capacity.

Answer

The population will go extinct due to lack of resources

Answer

The population grows then finds a new carrying capacity

Question 25

The total number of individuals a habitat can survive with the resources it has available.

Accepted Answer

Carrying capacity

Answer

Limiting factors

Answer

Resources

Answer

Population

Question 26

Excessive amounts of rain caused a flood in the southwest United States that resulted in substantial amounts of deaths in the rabbit population? This situation is an example of a density _____________ limiting factor.

Accepted Answer

density-independent

Answer

density-dependent

Answer

density- too high

Answer

density- too low

Question 27

A lion and a cheetah attempt to occupy the same niche. The more aggressive lion survives; the cheetah does not.

Accepted Answer

Density-Dependent: Competition

Answer

Density-Independent: Competition

Answer

Density-Dependent: Predator-Prey

Answer

Density-Independent: Predator-Prey

Question 28

Replacement of one type of community by another at a single place over time

Accepted Answer

succession

Answer

symbiosis

Answer

competition

Answer

cooperation

Question 29

First species to arrive in an area

Accepted Answer

pioneer species

Answer

invasive species

Answer

abiotic components

Answer

parasites

Question 30

Stable, final stage of succession

Accepted Answer

climax community

Answer

adaptation

Answer

pioneer species

Answer

niche

Question 31

First species occuring in areas of primary succession are mosses and

Accepted Answer

lichens

Answer

grasses

Answer

wildflowers

Answer

trees

Question 32

Succession type?

Accepted Answer

primary succession

Answer

secondary succession

Answer

tertiary succession

Answer

variable succession

Question 33

Succession type?

Accepted Answer

secondary succession

Answer

primary succession

Answer

tertiary succession

Answer

variable succession