Ecosystem

Question 1

what is a Ecosystem?

Answer 1

interaction of biotic (living) and abiotic (non-living) factors

Question 2

What is a habitat?

Answer 2

the natural home or environment of an animal, plant, or other organism

Question 3

What is a community?

Answer 3

an interacting group of various species in a common location

Question 4

What is a population?

Answer 4

species that live in a specific area and are capable of breeding among themselves

Question 5

What does independent mean?

Answer 5

free from outside control not subject to another’s authority

Question 6

What does biotic mean?

Answer 6

relating to or resulting from living organisms

Question 7

What does abiotic?

Answer 7

not derived from living organisms

Question 8

What is reforestation?

Answer 8

Planting new trees and sowing seeds

Question 9

What is fish farming?

Answer 9

Where fish are raised in enclosures to be sold as food

Question 10

What is conservation?

Answer 10

protecting species from extinction.

Question 11

What is biodiversity?

Answer 11

Variation on species

Question 12

What are the levels of organisation within an ecosystem?

Answer 12

producer
primary consumer
secondary consumer
tertiary consumer

Question 13

What is the function producers?

Answer 13

plants and algae, which photosynthesise.

Question 14

What is the function of primary consumer?

Answer 14

herbivores, which eat producers.

Question 15

What are the function of secondary consumers?

Answer 15

carnivores, which eat primary consumers

Question 16

what are abiotic features?

Answer 16

temperature
light
water
pollution

Question 17

What can be done to reforest?

Answer 17

planting trees

Question 18

What is biodiversity?

Answer 18

• Variety on Earth
• Variation within species

Question 19

What is the carbon cycle?

Answer 19

describes how carbon moves between the atmosphere, soils, living creatures, the ocean, and human sources.

Question 20

What is fish farming?

Answer 20

causes problems because so many live in a small space

Question 21

What happens to the oxygen levels during eutrophication?

Answer 21

Decomposers use up oxygen while feeding on dead plants

Question 23

What is a quadrat?

Answer 23

a square frame divided into smaller squares

Question 24

What is a predator?

Answer 24

an animal that hunts and kills other animals for food

Question 25

Where do carnivores get the nitrogen they need to survive?

Answer 25

by eating and digesting the bodies of other animals

Question 26

What is tank farming?

Answer 26

raising fish in controlled environments

Question 27

How do fish farms control diseases?

Answer 27

using pesticides

Question 28

What is biodiversity?

Answer 28

the variety of all different species of organisms

Question 29

What is the purpose of transects?

Answer 29

observe and record changes in species distribution

Question 30

What is deforestation?

Answer 30

cutting down of trees

Question 31

What is a population?

Answer 31

all the organisms of a particular species in the same habitat

Question 32

Why is sampling used?

Answer 32

draw conclusions without using time and effort

Question 33

What are primary consumers?

Answer 33

organisms that eat producers.

Question 34

What is a habitat?

Answer 34

the place where an organisms lives

Question 35

What are biotic factors?

Answer 35

living factors

Question 36

which process removes carbon from the atmosphere?

Answer 36

photosynthesis

Question 37

What is evaporation?

Answer 37

When liquid water becomes gaseous water

Question 38

What is the effect of pollution?

Answer 38

decreases biodiversity

Question 39

What are the 4 types of microorganisms involved int he nitrogen cycle?

Answer 39

Nitrogen-fixing bacteria Nitrifying bacteria Decomposed Denitrifying bacteria

Question 40

What 4 resources that plants compete for?

Answer 40

Light Space Water Mineral ions

Question 41

What are two steps for nitrification?

Answer 41

conversions of ammonia conversation of nitrates

Question 42

What are abiotic factors?

Answer 42

non-living factors

Question 43

What is precipitation?

Answer 43

liquid water falls from clouds as rain

Question 44

What is competition?

Answer 44

two or more organisms fighting over limited resources interaction between

Question 45

What is it called when nitrates are converted into atmospheric nitrogen?

Answer 45

Denitrification

Question 46

What are consumers?

Answer 46

consume other organisms

Question 47

What are tertiary consumers?

Answer 47

organisms eat secondary consumers

Question 48

What is ecology?

Answer 48

relationship between living organisms and their enviroment

Question 49

Where are nitrogen fixing bacteria found?

Answer 49

in the soil and in the roots of some plants

Question 50

What is condensation?

Answer 50

where gaseous water becomes liquid water in the clouds

Question 51

What is interdependence?

Answer 51

all organisms in an ecosystem depend upon one another

Question 52

What is a stable community?

Answer 52

where all the species are in balance

Question 53

What is assimilation?

Answer 53

plants use nitrates and ammonium ions to absorb the soil

Question 54

What is a food chain?

Answer 54

shows how energy passes from organism to organism