Definitions

Question 1

Photosynthesis

Answer 1

Radiant energy is converted into potential energy which is stored in food, and oxygen is released

Question 2

Respiration

Answer 2

The process in cells where glucose is broken down and energy is released

Question 3

Variable

Answer 3

Anything/factor that has an effect on an investigation

Question 4

Independent variable

Answer 4

The variable you purposely change

Question 5

Dependent variable

Answer 5

The variable that changes as a result of the independent variable and that you will measure

Question 6

Controlled variable

Answer 6

Variables that you will purposely keep the same

Question 7

Fair test

Answer 7

An investigation where all of the variables are kept the same and only one of the variable is changed. This means that if there is a change in the dependant variable it must be caused by the independent variable.

Question 8

Ecology

Answer 8

Study of interactions between living things and with their physical and chemical environment

Question 9

Ecosystem

Answer 9

All the living and non-living things in an enviroment and the different ways in which they interact with each other

Question 10

Population

Answer 10

A group of individuals of the same species living in the same places at the same time.

Question 11

Community

Answer 11

Different populations that interact with 1 another in the same ecosystem.

Question 12

Biosphere

Answer 12

All the different ecosystems on Earth combined

Question 13

Producer

Answer 13

Green plants that can make their own food

Question 14

Consumer

Answer 14

Organisms that rely on other organisms for their energy and food supply. Consumers can be either herbivores, carnivores, omnivores or decomposers.

Question 15

Herbivore

Answer 15

Animals that eat plants

Question 16

Carnivores

Answer 16

Animals that feed on other animals that are living or dead

Question 17

Omnivores

Answer 17

Animals that eat plants and animals

Question 18

Predator

Answer 18

carnivores that hunt other animals

Question 19

Scavenger

Answer 19

carnivores that feed on dead animals and decaying meat

Question 20

Insectivore

Answer 20

carnivores that feed on insects

Question 21

Decomposers

Answer 21

organisms that decompose/ break down the remains of dead plants, animals, and their waste

Question 22

Food chain

Answer 22

Number of steps in an ecosystem showing the transfer of energy between organisms

Question 23

Food web

Answer 23

A group of interconnected food chains

Question 24

Trophic level

Answer 24

Each stage in a food chain or food web

Question 25

Arrow in a food chain

Answer 25

Direction of energy flow

Question 26

Poaching

Answer 26

The illegal removal of animals or plants from the wild

Question 27

Adaptation

Answer 27

Characteristic that helps living things survive in their enviroment

Question 28

Variations

Answer 28

Differences between individuals in a population

Question 29

Extinct

Answer 29

There are no more of a species left

Question 30

Camouflage

Answer 30

Animals use colors and shapes to blend into an enviroment

Question 31

Mimicry

Answer 31

Harmless species copy/mimic other poisonous species to protect themselves

Question 32

Biodiversity

Answer 32

Total variety of species in an area

Question 33

Monoculture

Answer 33

Single crop species planted over a large area

Question 34

Alien species

Answer 34

Species that are not indigenous to a specific area

Question 35

Conservation

Answer 35

Wise management and use of natural resources that protects habitats and wildlife

Question 36

Sustainable use

Answer 36

Using resources wisely so that they aren’t depleted

Question 37

Biological control of alien plants

Answer 37

Living things are used to control the population by introducing the natural enemy. A lot of research must be done.

Question 38

Chemical control

Answer 38

Poisons/herbicides

Question 39

Mechanical control

Answer 39

Cutting down, burning, or uprooting

Question 40

Micro organisms

Answer 40

Very small organisms. Too small to see with naked eye.

Question 41

Microbiology

Answer 41

Study of micro organisms

Question 42

Unicellular

Answer 42

Consists of 1 cell

Question 43

Multicellular

Answer 43

Consists of many cells

Question 44

Vaccine

Answer 44

Preparation of a weakened or dead form of disease-causing micro-organisms

Question 45

Vaccination

Answer 45

Use of a vaccine to prevent infection with specific diseases

Question 46

Louis Pasteur

Answer 46

Developed a process called pasteurization.