9 Ecosystems And Mating

Question 1

What is an ecosystem made up of?

Answer 1

Living and non- living parts

Question 2

What is another word for living?

Answer 2

Biotic

Question 3

What is another word for non- living?

Answer 3

Abiotic

Question 4

What are the different levels of organisation in an ecosystem?

Answer 4

Individuals
Populations
Communities

Question 5

What is the smallest part of an ecosystem?

Answer 5

Individual

Question 6

What makes up a single species?

Answer 6

Populations of individual organisms

Question 7

What are communities made up of?

Answer 7

Populations of different species

Question 8

What are examples of ecosystems?

Answer 8

Savannah

Marine

Question 9

What do organisms need from ecosystems to be able to survive and reproduce?

Answer 9

Resources from abiotic and biotic parts of an ecosystem

Question 10

What resources do plants often fight for?

Answer 10

Water
Mineral ions (minerals)
Light
Space

Question 11

What do animals often compete for?

Answer 11

Food
Mates
Territory

Question 12

Why do organisms compete?

Answer 12

For resources

Question 13

What is species interdependence?

Answer 13

One species may depend on another for different things.

Question 14

What are examples of species interdependence?

Answer 14

Seed dispersal
Food
Shelter
Pollination

Question 15

When is a community stable?

Answer 15

balanced:

• Species
• Environmental factors

Population sizes constant

Question 16

What do food chains show?

Answer 16

Feeding relationships and energy flows within a biological community

Question 17

What do food chains nearly always begin with?

Answer 17

A producer that makes its own food

Question 18

What is an example of a producer?

Answer 18

Green plant or algae

- can photosynthesise

Question 19

What eats producers?

Answer 19

Primary consumers

Question 20

What are primary consumers eaten by?

Answer 20

Secondary consumers

Question 21

What are secondary consumers eaten by?

Answer 21

Tertiary consumers

Question 22

What is at the top of the food chain?

Answer 22

Apex predator

Question 23

What process can producers carry out?

Answer 23

They can make their own food.

Question 24

What are food chains made up of?

Answer 24

Predators
Prey
Apex predators
Decomposers

Question 25

What is a predator?

Answer 25

Consumer that eats other animals

Question 26

What are prey ?

Answer 26

Animals that predators eat

Question 27

What are decomposers?

Answer 27

• recycle organic matter

- final stop for all food chains

Question 28

What do decomposers do?

Answer 28

• Break down dead material by secreting (producing) enzymes
• enzymes partly digest waste products
• produces small & soluble food molecules
• molecules can diffuse into decomposer

Question 29

What is a trip him level?

Answer 29

Describes where an organism fits into a food chain.

Question 30

What are trophies levels given in?

Answer 30

Numbers

Question 31

What is food chain level 1?

Answer 31

Green plants & algae

• producers
• synthesise own food

Question 32

What is food chain level 2?

Answer 32

Herbivores that eat green plants and/or algae are called primary consumers.

Question 33

What is food chain level 3?

Answer 33

Carnivores that eat herbivores are called secondary consumers.

Question 34

What is food chain level 4?

Answer 34

Carnivores that eat other carnivores are called tertiary consumers.

Question 35

What are examples of decomposers?

Answer 35

Bacteria

Fungi