5.1 Ecosystems

Question 1

Organism

Answer 1

Living thing

Question 2

Species

Answer 2

A group of living organisms capable of interbreeding with each other but not with members of other species.

Question 3

Population

Answer 3

A group of individuals of the same species living in the same area at a particular time.

Question 4

Community

Answer 4

More than one population living in the same area at a particular time.

Question 5

Ecology

Answer 5

The study of ecosystems.

Question 6

Producers

Answer 6

Organism at the base of the food chain that does not need to feed on other organisms; also known as an autotroph.

Question 7

Decomposer

Answer 7

Organisms that break down organic matter into inorganic materials.

Question 8

Photosynthesis

Answer 8

Food making process in plants, by getting water, sunlight, and carbon dioxide.

Question 9

Autotroph

Answer 9

Self-feeder

Question 10

Heterotrophs

Answer 10

Other-feeders

Question 11

Consumers

Answer 11

Organism that relies on other organisms for its food; also known as a heterotroph.

Question 12

Herbivore

Answer 12

Eats only plants

Question 13

Carnivore

Answer 13

Only eats meat

Question 14

Omnivore

Answer 14

Eats both meat and plants

Question 15

Primary consumers

Answer 15

The first consumer in a food chain; also known as a first-order consumer.

Question 16

Detritivores

Answer 16

Animal that feeds on and breaks down dead plant or animal matter.

Question 17

Ecological niche

Answer 17

The position of a species or population in its own ecosystem, in relation to each other.

Question 18

Competition

Answer 18

The struggle among organisms for food, territory and other factors.

Question 19

Parasitism

Answer 19

An interaction in which one species (the parasite) lives in or on another species (the host) from which it obtains food, shelter and other requirements.

Question 20

Mutualism

Answer 20

Relationship between two different organisms in which both benefit.

Question 21

Commensalism

Answer 21

Relationship between organisms where one benefits and the other is unaffected.

Question 22

Inter specific competition

Answer 22

Competition between organisms of the same species.

Question 23

Intraspecific competition

Answer 23

Competition between organisms of different species.

Question 24

Predator-prey relationship

Answer 24

Relationship between organisms in which one species (the predator) kills and eats another species (the prey)

Question 25

Symbiotic relationship

Answer 25

Very close relationship between two organisms of different species. It may benefit or harm one of the partners.