Quiz about Life Science Chapter 18

Question 1

An environmental study reporting on the way temperature, water quality, and minerals affect the animals in a salt marsh would be considering which level of organization?

Accepted Answer

ecosystem

Answer

community

Answer

population

Answer

individual organism

Question 2

If scientists are studying the egrets, herons, marsh crabs, and cordgrass, but not the water or rocks in a salt marsh, what level of organization would they be studying?

Accepted Answer

community

Answer

ecosystem

Answer

population

Answer

individual organism

Question 3

What is the lowest level of environmental organization that three male egrets would all belong in together?

Accepted Answer

population

Answer

ecosystem

Answer

community

Answer

individual organism

Question 4

In which type of symbiosis do organisms help each other?

Accepted Answer

mutualism

Answer

commensalism

Answer

community

Answer

parasitism

Question 5

Two members of the same species fight over who gets a certain food. Members of different species try to take over a certain nesting area. These are both examples of

Accepted Answer

competition

Answer

commensalism

Answer

mutualism

Answer

community

Question 6

Limiting factors determine an area's carrying capacity because

Accepted Answer

animals need resources to survive

Answer

the number of animals is unlimited

Answer

ecosystems are small

Answer

the number of animals is limited

Question 7

After one species disappears, the other species in the ecosystem

Accepted Answer

are thrown out of balance

Answer

are unaffected

Answer

die

Answer

benefit

Question 8

In a food web, arrows point in just one direction because they show

Accepted Answer

how energy goes to the animal that is eating

Answer

how energy goes to the animal that is eaten

Answer

which animals are related

Answer

which animal is bigger

Question 9

A diagram with arrows showing energy flow from grass, to a rabbit, to a fox is

Accepted Answer

a food chain

Answer

a population chart

Answer

a food web

Answer

an energy pyramid

Question 10

Grass that gains energy from the sun is an example of a

Accepted Answer

producer

Answer

decomposer

Answer

parasite

Answer

consumer

Question 11

Which is an example of an abiotic element changing an area?

Accepted Answer

water flooding the area

Answer

algae growing on crabgrass

Answer

two species of birds competing

Answer

introducing a new type of grass

Question 12

What do several different populations living together make?

Accepted Answer

a community

Answer

an ecosystem

Answer

an organism

Answer

a biosphere

Question 13

Rocks, temperature, and water are what part of the environment?

Accepted Answer

abiotic

Answer

living

Answer

population

Answer

biotic

Question 14

What is the study of how living organisms and non-living factors in the environment interact called?

Accepted Answer

ecology

Answer

mutualism

Answer

parasitism

Answer

scientology

Question 15

The term used to describe a sparrow that has been caught by an eagle is

Accepted Answer

prey

Answer

mutualism

Answer

parasitism

Answer

producer

Question 16

A symbiotic relationship in which one organism gives the other food and one receives protection is known as

Accepted Answer

mutualism

Answer

parasitism

Answer

commensalism

Answer

competition

Question 17

The level of environmental organization in which biotic and abiotic parts of the environment are all considered together is

Accepted Answer

ecosystem

Answer

biosphere

Answer

population

Answer

community

Question 18

The depths of the oceans to the heights of the air is know at which level of environmental organization

Accepted Answer

biosphere

Answer

ecosystem

Answer

population

Answer

community

Question 19

A symbiotic relationship in which one organism hurts another to benefit itself.

Accepted Answer

parasitism

Answer

mutualism

Answer

commensalism

Answer

materialism

Question 20

A triangular diagram that shows how energy is lost as animals eat other living things is

Accepted Answer

triangular pyramid

Answer

food web

Answer

food chain

Answer

food source

Question 21

An animal that eats many foods, including fish and berries is known as a

Accepted Answer

omnivore

Answer

carnivore

Answer

herbivore

Answer

parasite

Question 22

Three organisms on the food web have arrows pointing away from them and no arrows pointing toward them. They are

Accepted Answer

producers

Answer

herbivores

Answer

decomposers

Answer

omnivores

Question 23

Three organisms on the food web have arrows pointing toward them but no arrows point away from them. This is because

Accepted Answer

nothing shown eats them

Answer

they need no energy

Answer

they give energy to others

Answer

they make their won food

Question 24

The arrows on the food web show that

Accepted Answer

prairie dogs eat grass

Answer

squirrels eat grass

Answer

deer eat prairie dogs

Answer

squirrels eat coyotes

Question 25

What does the arrow between the grasshopper and the coyote represent?

Accepted Answer

energy flowing from the grasshopper to the coyote

Answer

energy flowing from the coyote to the grasshopper

Answer

energy flowing from consumers to producers

Answer

energy flowing from producers to consumers

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