Ecology

Question 1

Abiotic( Non-Living)

Answer 1

Factors such as temperature, light, water, nutrients, sun, wind, and water

Question 2

Biotic(Living)

Answer 2

Factors— all of the living things

Question 3

Four levels of study?

Answer 3

Species
Population
Community
Ecosystem

Question 4

Species

Answer 4

A group of organisms so similar that they can breed and produce viable offspring.

Question 5

Population

Answer 5

Groups of individuals of the same species that live in the same area.

Question 6

Community

Answer 6

All of the organisms in a particular area

Question 7

Ecosystem

Answer 7

All of the abiotic factors and community of species in a particular area.

Question 8

Ecosystems #2

Answer 8

A particular population of species lives in a habitat.

An individual lives in a smaller area called a niche.

Question 9

Symbiosis

Answer 9

Close and often long term interactions between different biological species.

• Commensalism
• Parasitism
• Mutualism

Question 10

Commensalism

Answer 10

One helped other neither harmed or helped (+/o)

Question 11

Parasitism

Answer 11

One helped one harmed (+/-)

Question 12

Mutualism

Answer 12

Both helped (+/+)

Question 13

Predator/ prey

Answer 13

(+/-)

Question 14

Competition

Answer 14

(-/-)

Question 15

Inter specific

Answer 15

Occurs when individual of different species compete for the same essential resources.

Question 16

Intraspecific

Answer 16

Occurs when individuals of the same species compete for the same essential resources.

Question 17

Producers( Autotrophs)

Answer 17

Capture energy and make energy storing molecules( glucose) through photosynthesis or chemosynthesis in the absence of light.

Question 18

Consumers( Heterotrophs)

Answer 18

Obtain energy by consuming plants or other animals.

Trophic(energy) level is determined by the source of energy

Question 19

Biome

Answer 19

Climatically and geographically defined area of similar climatic conditions such as communities of plants and animals

Question 20

Ecological Succession

Answer 20

The series of predictable changes that occur in a community over time

Question 21

Primary Succession

Answer 21

Succession that occurs on land where no soil exists.

Occurs on surface formed from volcanic eruptions or on rock exposed when glaciers melt

Question 22

Secondary Succession

Answer 22

Occurs when a disturbance changes an existing community without removing soil

Question 23

Population

Answer 23

All of the individuals in a species that live in a particular habitat and can reproduce

Question 24

Population Density

Answer 24

A measurement of population per unit area or unit volume

Question 25

Population Growth

Answer 25

Birth rate
Death rates
Immigration- moving in
Emigration- moving out

Question 26

Carrying Capacity

Answer 26

The number of animals the habitat can support year round

Question 27

Ecology

Answer 27

The study of the interactions of organisms with one another and with their environment.

Question 28

Nitrogen fixation

Answer 28

Breaks stable nitrogen molecules apart so it can be converted into usable form

Question 29

Nitrification

Answer 29

Conversion of ammonia to nitrates that plants need to grow

Question 30

Greenhouse effect

Answer 30

Carbon dioxide, methane and water vapor in the atmosphere absorb some of the energy of the sun and reflect it back towards the earth

Question 31

Decay

Answer 31

When plants and animals break down and release nitrogen back to earth as ammonia