Chapter 4: Ecology I

Question 1

Ecology

Answer 1

Study of interaction between organisms and their environment

Question 2

Biosphere

Answer 2

This is the part of the earth where organisms can live

Question 3

Ecosystem

Answer 3

A group of clearly distinguished organisms that interact with their environment as a unit.A wide variety of ecosystems exist - woodland,bog,meadow,rocky seashore

Question 4

Habitat

Answer 4

Is the place where an organism lives

Question 5

Community

Answer 5

A group of populations

Question 6

Population

Answer 6

A group of organisms of one species

Question 7

Producer

Answer 7

An organism that makes their own food by photosynthesis

Question 8

Consumers

Answer 8

An organism that obtains it’s good from another organism

Question 9

Herbivore

Answer 9

An animal that eats plants only

Question 10

Carnivore

Answer 10

An animal that eats animals

Question 11

Omnivore

Answer 11

An animal that eats plants and animals

Question 12

Predator

Answer 12

An organism that kills and eats another organism

Question 13

Decomposers

Answer 13

An organism that feeds off dead plants and animals

Question 14

Abiotic Factors

Answer 14

The non-living factors which affect organisms

Question 15

Biotic Factors

Answer 15

Factors associated with the presence and activities of the organisms

Question 16

Edaphic Factors

Answer 16

Relate to properties of soil

Question 17

Food chain

Answer 17

A series of organism connected together in a feeding relationship

Question 18

Food web

Answer 18

A series of interconnecting food chains

Question 19

Trophic level

Answer 19

Is a feeding stage in a food chain

Question 20

Pyramid of numbers

Answer 20

A bar diagram indicating the number of organisms at each trophic level in a food chain

Question 21

Niche

Answer 21

How an organism fits into its ecosystem

Question 22

Adaptation

Answer 22

Any alternation that improves an organisms chance of survival and reproduction

Question 23

Pollution

Answer 23

Is any harmful addition to the environment by human activity

Question 24

Conservation

Answer 24

The wise management of the environment/existing resources to maintain biodiversity