Topic G- The Organism In The Enviroment And Feeding Relationship

Question 0

Give the definition of food chain

Answer 0

Food chain is a sequence that represents the way in which energy is transferred from one organism to another in a community.

Question 1

Give the definition of food web

Answer 1

These are different diagrams that show the way in which different organisms in a community depend on each other for food. A food web is made of many interconnecting food chains.

Question 2

Give the definition of community

Answer 2

All organisms in an ecosystem

Question 3

Give the definition of ecosystem

Answer 3

All the living (biotic) and non living (abiotic) components in an environment

Question 4

Give the definition of population

Answer 4

All the organisms of the same species in a given environment

Question 5

Give the definition of predator

Answer 5

Predator is an animal that hunts, kills and eats another animal

Question 6

Give the definition of prey

Answer 6

Prey animal is any organism killed and eaten by another animal

Question 7

Give the definition of omnivore

Answer 7

An animal that eats both plants and animals

Question 8

Give the definition of scavengers

Answer 8

Sometimes other animals eat dead remains

Question 9

Give the definition of decomposers

Answer 9

The organisms that cause decay

Question 10

Give the definition of producers

Answer 10

Producers are any organisms that can photosynthesize to make their own food

Question 11

Give the definition of herbivore

Answer 11

Any organism that is not a producer must feed on another organisms to gain energy

Question 12

Give the definition of carnivores

Answer 12

Consumers that only feed off other animals

Question 13

Primary consumers

Answer 13

A herbivore that feeds of plants and fungi

Question 14

Five the definition for habitat

Answer 14

The particular place where a community is found (where the organisms live) eg. Rocky shore

Question 15

Trophic level

Answer 15

The point at which a organisms is at on a food chain or web
-the bottom level is producers - these are eaten by primary (1st comsumers) which are eaten by secondary consumers and so on…

Question 18

Give the definition of pyramids

Answer 18

Pyramids show the organism from a single food chain at each Trophic level

Question 19

How can a food chain be represented

Answer 19

A food chain can be represented by 3 different types of pyramids

1. Pyramid of numbers
2. Pyramids of biomas
3. Pyramid of energy transfer

Question 20

What are pyramids of energy transfer

Answer 20

Show the total amount of energy transfer through a food chain

• never inverted
• kJ or Kcal/m^2/year

Question 21

What do the pyramids of numbers show

Answer 21

The relative number of each type of living organisms in a food chain
Eg. Grass, buffalo, lion

Question 22

What are pyramids of biomass

Answer 22

These shows the dry mass of living material at each level in a food chain
Biomass changes at different times of the year- different shapes at different times of the year