Chapters 21 & 23

Question 1

The study of a group of the same species living in the same geographical area.

Answer 1

Population Ecology

Question 2

The number of individuals that make up a population.

Answer 2

Population Size

Question 3

The number of individuals that live in a unit area.

Answer 3

Population Density

Question 4

Equal to the number of births and immigration minus the number of deaths and emigration.

Answer 4

Rate of Growth

Question 5

The spacial patterns of a population in their habitat (random, clumped, uniform).

Answer 5

Distribution

Question 6

Factors that depend on the number of members of the population for availability.

Answer 6

Density Dependent Factors

Question 7

Factors that do not depend on the number of members.

Answer 7

Density Independent Factors

Question 8

Seeks to understand the complex interactions between many species in a given area.

Answer 8

Community Ecology

Question 9

A relationship where both species benefit.

Answer 9

Mutualism

Question 10

A relationship where only one of the species benefit but the second is not harmed.

Answer 10

Commensalism

Question 11

A relationship where only one species benefits and the second is harmed.

Answer 11

Expolitation

Question 12

An interaction between species where both species can be harmed.

Answer 12

Competition

Question 13

The variety of lifeforms on earth or supported by an ecosystem.

Answer 13

Biodiversity

Question 14

The physical environment where a species lives.

Answer 14

Habitat

Question 15

The role a species plays in its environment.

Answer 15

Niche

Question 16

A J-Shaped curve on a graph describing population growth is representative of what?

Answer 16

Exponential Growth

Question 17

A S-Shaped curve on a graph describing population growth is representative of what?

Answer 17

Logistic Growth

Question 18

Exponential Growth includes humans, bacteria, and invasive species.

Answer 18

True

Question 19

Logistic Growth includes nearly everything (excluding: humans, bacteria, and invasive species) in an population.

Answer 19

True

Question 20

The straight line on a graph describing population growth is representative of what?

Answer 20

Carrying Capacity (also referred to as k)

Question 21

Carrying Capacity is the number of living organisms an ecosystem can support.

Answer 21

True

Question 22

Natural resources have no effect on population size.

Answer 22

False

Question 23

Species interactions can affect population size.

Answer 23

True

Question 24

Human activity has a massive impact on population size.

Answer 24

True

Question 25

Density Dependent factors can include food, water, and disease.

Answer 25

True

Question 26

Density Independent factors can include weather, fire, natural disasters, and accidents

Answer 26

True

Question 27

Symbiosis means “living together”.

Answer 27

True

Question 28

Symbiosis can also mean mutualsim.

Answer 28

False (not all relationships are beneficial to both parties)

Question 29

In exploritation, parasitism usually kills the host.

Answer 29

False, host survives

Question 30

In exploitation, predation kills the host, and means they are consumed.

Answer 30

True

Question 31

Interspecies is competition between different species, competing between resources and space.

Answer 31

True

Question 32

Intraspecies is competition between the same species, competing between territory and reproduction.

Answer 32

True

Question 33

The more complex an ecosystem the easier it is to destroy.

Answer 33

False

Question 34

A healthy ecosystem is immensity biodiverse.

Answer 34

True

Question 35

The principle that states no two species can occupy the same niche indefinitely is called what?

Answer 35

Competitive Exclusion Principle

Question 36

When species utilize different resources or the same resource at different times or different way is called what?

Answer 36

Niche Partitioning

Question 37

Competitive exclusion leads to niche partitioning.

Answer 37

True

Question 38

Character displacement is differences in species adaptations and are more sever in areas where competing species overlap.

Answer 38

True