Ecosystems N5 U3 P1

Question 1

Species definition

Answer 1

A group of organisms that can interbreed to produce fertile offspring

Question 2

Biodiversity definition

Answer 2

The variety of living things found in an ecosystem

Question 3

Population definition

Answer 3

All the organisms of one particular species living in a particular habitat

Question 4

Producer definition

Answer 4

Any organism producing their own food
-plants

Question 5

Consumer definition

Answer 5

Any organism that cant produce their own food, feed on other consumers or producers

Question 6

Herbivore definition

Answer 6

Only eats things that need photosynthesis

Question 7

Carnivore definition

Answer 7

Only eats eats meat

Question 8

Omnivore definition

Answer 8

Eats both meat and vegetation

Question 9

Predator definition

Answer 9

Animal that hunts and kills another organism

Question 10

Prey definition

Answer 10

Hunted by predators

Question 11

Food chain definition

Answer 11

Shows feeding relationship between plant and animals

Question 12

Food web definition

Answer 12

Complex feeding relationship interconnects in an ecosystem

Question 13

Ecosystem definition

Answer 13

All the organism living in a particular habitat and the non-living components which the organisms interact with
-requires plants

Question 14

Community definition

Answer 14

All the organism living in a particular habitat

Question 15

Niche definition

Answer 15

The role the organisms play within a community

Question 16

Pyramid of numbers definition

Answer 16

Number of organisms at each level of a food chain

Question 17

Pyramid of energy definition

Answer 17

Amount of available energy at each level in a food chain

Question 18

Allele definition

Answer 18

Variant of gene

Question 19

Biomes definition

Answer 19

Largest ecosystems
Geographical region of the planet
Charecterised by climates

Question 20

Major biomes

Answer 20

Forests
Deserts
Grassland
Tundra
Aquatic

Question 21

Factors affecting biomes

Answer 21

Temperature
Rainfall
[abiotic]

Question 22

Ecosystems non-living components

Answer 22

Temperature
Light intensity
Soil type
Soil nutrients
Rainfall

Question 23

Need for plants in ecosystems

Answer 23

Plants release oxygen in the process of photosynthesis
Oxygen required by both plants and animals
Plants provide shelter for animals

Question 24

Need for animals in ecosystems

Answer 24

Animals act as pollinators so that plants can reproduce

Question 25

Niches interactions

Answer 25

Organisms interact with both physical and biological parts of the ecosystem Competition Parasitism Predation Light Temperature Nutrient availability

Question 26

Competition

Answer 26

Occurs when resources are in short supply Intraspecific competition is more intense than interspecific competition

Question 27

Interspecific competition

Answer 27

Occurs amongst individuals of different species for one or a few of the resources they require

Question 28

Intraspecific competition

Answer 28

Occurs amongst individuals of the same species for all resources required

Question 29

Grazing intensity

Answer 29

Animals feed on plants Decreases biodiversity as there is animals feeding intensely on plants Number of plants will decrease