Chapter 3- Ecosystems and Adaptation

Question 1

What do animals compete for?

Answer 1

Animals compete for food, mates, water and space

Question 2

What do plants compete for?

Answer 2

Plants, compete for light, minerals, water and space – plants do not compete for food as they produce their own through photosynthesis

Question 3

What happens when a predator feeds on does one type of prey?

Answer 3

When a predator only feeds on one type of prey, there is a link between predator population and the prey population. This means the changes in the population of one animal directly affect the population of the other.

Question 4

What is population

Answer 4

Population is the number of organisms that live in the same area

Question 5

What happens to the population of organisms?

Answer 5

The population is constantly changing – this affects of the population is in a food web

Question 6

What does interdependent mean?

Answer 6

Interdependent is when living organisms depend on each other to survive, grow and reproduce

Question 7

What is an ecosystem?

Answer 7

All of the organisms found in a particular location of the area they live in

Question 8

What is a community in ecosystems?

Answer 8

The organisms in an ecosystem

Question 9

What is a habitat?

Answer 9

Area a community lives in

Question 10

What does niche mean in biology terms?

Answer 10

The particular place or roll an organism has within an ecosystem. This reduces competition for resources.

Question 11

What is a food chain?

Answer 11

a series of organisms that eat one another so that energy and nutrients flow from one to the next.

Question 12

What is a food web?

Answer 12

A food web is lots of different food chains, all linked together

Question 13

What is a producer?

Answer 13

A plant/algae that makes its own food

Question 14

What is a prey?

Answer 14

Type of consumer that eats the producer

Question 15

What is a predator?

Answer 15

A type of consumers that eat other animals

Question 16

What is Apex predator?

Answer 16

An apex predator is the last link in a food chain

Question 17

Prey definition

Answer 17

An organism eaten by another organism

Question 18

Predator definition

Answer 18

An organism that eats another organism

Question 19

What is bioaccumulation?

Answer 19

The buildup of chemicals, like insecticides, passed along a food chain

Question 20

What is the definition of adaptations

Answer 20

Adaptations of characteristics that help an organism to survive.
(E.g. cheetah is the fastest land animal. The speed makes it a very successful predator).

Question 21

What are environmental changes?

Answer 21

Plants and animals adapt to changes in the environment. Habitats can change through climate change, human interference, or change of season.

Question 22

What is interdependence? (Five things)

Answer 22

1) predator and prey species are interdependent
2) this occurs when a change in the population of one animal affects the population of the other
for example, Canadian lynx, and snowshoe hare interdependent:
3) when the prey (hare) population increases, the predators (lynx) have more to eat. The lynx survive longer and reproduce more, so the number of predators increases.
4) the increase in predators means more hare eaten, so the prey population decreases
5) the Princess and do not have enough food, so their numbers decrease, and the pro population increases again.
This process is a continuous loop

Question 23

What is interdependence? (Five things)

Answer 23

1) predator and prey species are interdependent
2) this occurs when a change in the population of one animal affects the population of the other
for example, Canadian lynx, and snowshoe hare interdependent:
3) when the prey (hare) population increases, the predators (lynx) have more to eat. The lynx survive longer and reproduce more, so the number of predators increases.
4) the increase in predators means more hare eaten, so the prey population decreases
5) the Princess and do not have enough food, so their numbers decrease, and the pro population increases again.
This process is a continuous loop