FINAL EXAM - Module 6

Question 1

________ are organisms that are able to convert the sun’s energy into usable energy

Answer 1

Producers

Question 2

You observe an animal that only eats plants. This animal is a(n}

Answer 2

herbivore

Question 3

Predator-prey relationships are shown through

Answer 3

food chains

Question 4

A _________ shows that species may have more than one source of food.

Answer 4

food web

food web that consists of many intersecting food chains and represents the different things an organism can eat and be eaten by.

Question 5

Decomposers

Answer 5

break down dead material in an ecosystem

Question 6

Primary consumers are eaten by

Answer 6

secondary consumers

Question 7

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

Answer 7

food chain

Question 8

Which type of relationship benefits both species?

Answer 8

mutualism

Question 9

Parasitism is when

Answer 9

one organism feeds off another, making it weak or killing it

Question 10

Barnacles are stuck to a whale. The barnacles 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

mutualism

Question 12

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 12

Mutualism

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

commensalism

Question 14

Three types of symbiotic relationships include

Answer 14

mutualism, commensalism, and parasitism

Question 15

Give an example of a limiting factor. Describe in detail how this factor limits population growth.

Answer 15

Competition for resources, Food, Shelter. While a lack of resources contributes to the lack of population growth. Animals won’t be able to raise there young without the food or shelter to keep them alive and fend off predators.

Question 16

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

Answer 16

declining population.

Question 17

An ecosystem includes

Answer 17

biotic and abiotic factors

Question 18

Temperature is considered a(n) _______ limiting factor.

Answer 18

abiotic

Question 19

Parasitism is considered a(n) _________ limited factor.

Answer 19

biotic

Question 20

Habitat is defined as

Answer 20

an ecosystem where a species lives

Question 21

Some species are no longer living but we know they existed at one time. We know this because

Answer 21

scientists have discovered fossil evidence

Question 22

Scientists study fossils in order to

Answer 22

learn how species changed in the past

Question 23

The theory of evolution tells us that

Answer 23

living things change over time

Question 24

Living things change over time in response to

Answer 24

changes in their environment

Question 25

______ is responsible for formulating the theory of evolution.

Answer 25

Charles Darwin

Question 26

According to Darwin, organisms with traits that are best suited for the environment will

Answer 26

pass those traits on to future generations.

Question 27

The theory of evolution states that

Answer 27

populations change slowly over time

Question 28

Populations change over time due to the process of

Answer 28

natural selection

Question 29

In order for natural selection to take place, we must have

Answer 29

competition for resources

Question 30

Populations with high diversity have

Answer 30

many different traits

Question 31

Sexual reproduction is the reproductive process that

Answer 31

creates genetic variety

Question 32

When limiting factors ________, diversity in populations _________.

Answer 32

increase; decreases

Question 33

In your own words, describe the process of natural selection.

Answer 33

An organism must adapt to change in environment and climate and though that genes change based on the changes the organism must make to survive in the wild. If an organism cannot adapt to the changes in the environment they will die.

Question 34

Biological diversity includes

Answer 34

all of the different species living in the world

Question 35

Variations in genotype through an entire population describes

Answer 35

genetic diversity

Question 36

You find that there are 47 species living within two miles of your house. This is known as

Answer 36

species diversity

Question 37

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

Answer 37

high

Question 38

One possible cause of extinction is

Answer 38

unwillingness of species to mate
low genetic diversity
no desire to eat

Question 39

Fossil evidence shows us that biological diversity has _____ over time.

Answer 39

not changed
increased
become larger
decreased

Question 40

When individuals leave a population, the remaining populations will likely experience a _________ in genetic diversity.

Answer 40

decline

Question 41

Humans and animals often

Answer 41

compete for living space

Question 42

Describe an example where human activities might cause a decline in a population.

Answer 42

If humans cut down trees for fuel and other resources we can be causing animals to lose there homes and protection from predators which would cause a declining population.

Question 43

You observe a bear eat a berry and a deer. The bear is an

Answer 43

omnivore

Question 44

Community One is made up of 50 different species and has a total number of 5000 individuals. Community Two is made up of 100 different species and has a total number of 2000 individuals. Which community has higher species diversity?

Answer 44

Community Two because there are more different species here

Question 45

A population has a great number of individuals that have the exact same traits. This population would likely have

Answer 45

low genetic diversity

Question 46

Which area would you expect to have the highest species diversity?

Answer 46

a rain forest

Question 47

Saber-Toothed Tigers are no longer living. They are

Answer 47

extinct