Unit 6 Exam

Question 1

Organisms that are able to take the energy from the sun and make it usable for living things are called (1 point)

Answer 1

Consumers

Question 2

Carnivores only eat which of the following?

Answer 2

Meat

Question 3

Food chains show

Answer 3

Predator-Prey Relationship

Question 4

In order to find information about an organism’s sources of food, you would consult

Answer 4

a food web

Question 5

Decomposers

Answer 5

break down dead material in an ecosystem

Question 6

A primary consumer eats

Answer 6

producers

Question 7

Which of the following shows how energy is transferred from organism to organism?

Answer 7

Food chains

Question 8

What type of relationship is described as a relationship between two species, where both species benefit?

Answer 8

Mutualism

Question 9

An organism feeds off of another, making it weak or causing death. This is an example of

Answer 9

parasitism

Question 10

Barnacles are stuck to a whale. The barnacle’s benefit and the whale is unaffected. This is an example of

Answer 10

commensalism

Question 11

Corals and the algae that live in coral polyps have a special relationship. Each contributes something that the other needs to survive. This is an example of

Answer 11

commensalism

Question 12

Pine beetles live in and harm the tree. This is an example of

Answer 12

parasitism

Question 13

Starlings are birds that feed off insects that are attracted to cattle. The starlings get food from the cattle, but the cattle are neither helped nor hurt. This is an example of (

Answer 13

mutualism

Question 14

Which of the following is not a symbiotic relationship?

Answer 14

Mutualism
-Trophism
Commensalism
Parasitism

Question 15

You notice that the number of deer in an area has gotten smaller. The deer have a(n)

Answer 15

declining population

Question 16

An ecosystem includes

Answer 16

biotic and abiotic factors

Question 17

Humans introduce a harsh chemical into an area that kills many insect populations. Diversity in this area will

Answer 17

decrease

Question 18

Humans and animals often

Answer 18

compete for living space

Question 19

Populations with ________ levels of genetic diversity are best able to adapt to changes in the environment.

Answer 19

High

Question 20

Species diversity is defined as

Answer 20

the number of species that live in a given area

Question 21

All the different species living in the world make up

Answer 21

biological diversity

Question 22

Populations with high diversity have

Answer 22

Many different traits

Question 23

Without ________, natural selection would not be possible.

Answer 23

competition for resources