2.2.7 Food Chains and Webs

Question 1

What is a food chain?

Answer 1

A food chain is a diagram that shows what an organism eats. It shows the transfer of energy between organisms.

Question 2

What do the arrows in a food chain or web tell us?

Answer 2

The direction that energy is travelling in.

Question 3

The first organism in a food chain is called a

Answer 3

producer

Question 4

What is a producer?

Answer 4

An organism that can produce its own food

Question 5

The second organism in a food chain is always a…

Answer 5

herbivore because it always eats a producer (plant)

Question 6

The second organism in a food chain is called the…

Answer 6

primary consumer

Question 7

The third organism in a food chain is called the…

Answer 7

secondary consumer

Question 8

The fourth organism in a food chain is called the…

Answer 8

tertiary consumer

Question 9

The fifth organism in a food chain is called the…

Answer 9

quaternary consumer

Question 10

What is a carnivore?

Answer 10

An animal that survives by eating other animals

Question 11

What is a herbivore?

Answer 11

An animal that survives by eating palnts

Question 12

What is an omnivore?

Answer 12

An animal that can survive by eating both plants and animals.

Question 13

If an animal is eaten by another animal it is called..

Answer 13

prey

Question 14

If an animal eats another animal it can be classed as a…

Answer 14

predator (carnivore)

Question 15

Roughly how much energy is passed up each stage of a food chain?

Answer 15

10%

Question 16

How do we calculate 10% of a number?

Answer 16

Divide the number by 100 and then times it by 10.

Question 17

What is 90% of the energy that is lost between each stage of a food chain lost as?

Answer 17

Movement
Excretion
Maintaining body temperature

Question 18

What do we call the organism at the end of a food chain

Answer 18

The top predator

Question 19

Why is a food chain rarely more than 5 organisms long?

Answer 19

Not enough energy can be transferred