Ecology Notes 1

Question 1

Ecology

Answer 1

The study of organisms and their interactions with each other and their environment

Question 2

Habitat

Answer 2

The specific environment of a species

Question 3

Population

Answer 3

All of the individuals of a single species that live in a specific area

Question 4

Community

Answer 4

All of the populations living in any one area at the same time

Question 5

Ecosystem

Answer 5

The combination of all of the communities of an area

Question 6

Biosphere

Answer 6

All of Earth’s ecosystems

Question 7

Ecological Organization

Answer 7

Organism, Population, Community, Ecosystem

Question 8

Biotic

Answer 8

Living

Question 9

Abiotic

Answer 9

Non-living

Question 10

Niche

Answer 10

The specific role played by an organism in its ecosystem

Question 11

Competition

Answer 11

When two species occupy the same niche, when resources are limited

Question 12

Intraspecific Competition

Answer 12

Competition within a certain species

Question 13

Interspecific Competition

Answer 13

Competition between organisms of different species

Question 14

Limiting Factor

Answer 14

Anything within an environment that limits the population

Question 15

Predator-prey relationships are ___________

Answer 15

Cyclical

Question 16

Carrying Capacity

Answer 16

The number of species that the ecosystem can support

Question 17

Cause of a carrying capacity in an ecosystem

Answer 17

Logistic growth

Question 18

Components of a stable ecosystem (3)

Answer 18

Constant source of energy, organisms to utilize energy, recycling nutrients between organisms

Question 19

Sun

Answer 19

Source of energy for all organisms

Question 20

Energy flows through an ecosystem in ___ direction

Answer 20

One

Question 21

Order that energy flows

Answer 21

Producers, consumers, decomposers

Question 22

Food chains and webs illustrate __________________ relationships

Answer 22

Predator-prey

Question 23

Autotrophs

Answer 23

Producers

Question 24

Heterotrophs

Answer 24

Consumers

Question 25

Only __% of energy is transferred to the next level

Answer 25

10

Question 26

Populations sizes of _________ are always the highest

Answer 26

Producers