Ecosystems and Energy

Question 1

What is the definition of a species?

Answer 1

Organisms that can produce fertile offspring

Question 2

What is the definition of biodiversity?

Answer 2

the total variation that exists amongst all living things on earth

Question 3

What is the definition of a habitat?

Answer 3

the place where an organism lives

Question 4

What is the definition of a population?

Answer 4

The total number of a particular species in a particular area

Question 5

What is the definition of a community?

Answer 5

All the living things in an area

Question 6

What is the definition of an ecosystem?

Answer 6

All the living and non-living things in an area

Question 7

What is a producer?

Answer 7

organism that uses energy from the sun to make its own food

Question 8

What is a herbivore?

Answer 8

An organism that only eats plants for energy

Question 9

What is a carnivore?

Answer 9

An organism that only eats other animals for energy

Question 10

What is an omnivore?

Answer 10

A consumer that eats plants and animals

Question 11

What is a predator?

Answer 11

An animal that hunts and eats other animals - hunter

Question 12

What is prey?

Answer 12

The animal eaten by the predator - hunted

Question 13

What is a niche?

Answer 13

The role an organism plays within the community.

Question 14

What is it called when organisms want the same resources?

Answer 14

Competition

Question 15

What are the 2 types of competition?

Answer 15

intraspecific and interspecific

Question 16

What is intraspecific competition?

Answer 16

Competition within the same species

Question 17

What is interspecific competition?

Answer 17

Competition between different species

Question 18

Which type of competition is the most intense?

Answer 18

Intraspecific

Question 19

What can be used to sample plants in an area?

Answer 19

Quadrat

Question 20

What can be used to sample small insects in an area?

Answer 20

pitfall trap

Question 21

What term is used to describe living factors that affect where an organism lives?

Answer 21

biotic

Question 22

What term is used to describe non-living factors that affect where an organism lives?

Answer 22

abiotic

Question 23

Give 3 examples of biotic factors.

Answer 23

disease, food availability, grazing, competition, predators

Question 24

Give 3 examples of abiotic factors.

Answer 24

temperature, moisture, light intensity, pH, wind speed

Question 25

What name is given to an organism that by its presence or absence gives an indication of how polluted an area is?

Answer 25

Indicator species

Question 26

On average, how much energy is lost in each stage of a food chain?

Answer 26

90%

Question 27

State 3 ways energy is lost in a food chain.

Answer 27

1. heat 2. movement 3. undigested food

Question 28

Energy used for what activity is available at the next level of the food chain?

Answer 28

Growth

Question 29

What is a pyramid of energy?

Answer 29

A pyramid that shows the energy at each level of the food chain

Question 30

What is a pyramid of numbers?

Answer 30

A pyramid that shows the number of organisms at each level fo the food chain

Question 31

Which pyramid can have an irregular shape?

Answer 31

Pyramid of numbers

Question 32

What always comes at the base of a pyramid?

Answer 32

Producer