Year 9 ecosystems

Question 1

What is an ecosystem?

Answer 1

An ecosystem is a community of living organisms interacting with their physical environment.

Question 2

True or False: Ecosystems only include living organisms.

Answer 2

False

Question 3

Fill in the blank: Producers in an ecosystem are primarily _____.

Answer 3

plants

Question 4

What role do consumers play in an ecosystem?

Answer 4

Consumers obtain energy by eating other organisms.

Question 5

Multiple Choice: Which of the following is a decomposer? A) Grass B) Wolf C) Mushroom D) Eagle

Answer 5

C) Mushroom

Question 6

What is the main source of energy for most ecosystems?

Answer 6

The Sun

Question 7

True or False: All ecosystems are the same size.

Answer 7

False

Question 8

Fill in the blank: The _____ is a type of ecosystem found in areas with high rainfall and warm temperatures.

Answer 8

tropical rainforest

Question 9

What is biodiversity?

Answer 9

Biodiversity refers to the variety of living organisms in a particular ecosystem.

Question 10

Multiple Choice: What is a food chain? A) A list of all organisms in an ecosystem B) A sequence of energy transfer through consumption C) A type of ecosystem D) A group of similar species

Answer 10

B) A sequence of energy transfer through consumption

Question 11

Short Answer: Name one factor that can affect an ecosystem.

Answer 11

Climate change

Question 12

True or False: Energy flows in a one-way direction through an ecosystem.

Answer 12

True

Question 13

Fill in the blank: In a food web, _____ are organisms that eat primary consumers.

Answer 13

secondary consumers

Question 14

What is an abiotic factor?

Answer 14

An abiotic factor is a non-living component of an ecosystem, such as water, soil, and temperature.

Question 15

Multiple Choice: Which of the following is NOT a biome? A) Desert B) Tundra C) Ocean D) Predator

Answer 15

D) Predator

Question 16

What is the difference between a habitat and a niche?

Answer 16

A habitat is where an organism lives, while a niche is the role or function of that organism within its ecosystem.

Question 17

True or False: Invasive species can disrupt local ecosystems.

Answer 17

True

Question 18

Fill in the blank: The _____ cycle describes the movement of water through the environment.

Answer 18

water

Question 19

What is the significance of keystone species?

Answer 19

Keystone species have a disproportionately large effect on their environment relative to their abundance.

Question 20

Multiple Choice: Which of the following is an example of a symbiotic relationship? A) Predator-prey B) Parasitism C) Competition D) All of the above

Answer 20

D) All of the above