Organising An Ecosystem

Question 1

What is the importance of photosynthesis in feeding relationships

Answer 1

Sunlight is absorbed by green plants and algae for photosynthesis
Glucose and oxygen produced
Glucose produces the chemicals to make up the plant cells
This adds to the biomass of the organisms

Question 2

What are the producers and why are they called that

Answer 2

They produce their own food using co2 and h20
They produce most of the biomass for life on Earth
Plants and algae and phytoplankton at sea

Question 3

What are primary consumers

Answer 3

The animals that eat the producers
Herbivores on land eg sheep, hippos, rabbits, caterpillars, aphids and many birds eg parrots and humm8ngbirds
In oceans shrimps, crabs, sea urchins, zooplankton, small fish

Question 4

What are secondary consumers

Answer 4

They eat primary consumers
Secondary consumers Eg lions foxes, blue tits, eagles, chameleons
Larger fish, seals, turtles

Question 5

What are tertiary consumers

Answer 5

Large carnivores eg polar bears, tigers, birds of prey, killer whales

Question 6

What are decomposers

Answer 6

Fungi of bacteria that cause break down or rotting away waste
Recycles the carbon,oxygen, hydrogen and nitrogen so they can be building material for all new life on earth

Question 7

What is a food chain

Answer 7

Simple description of feeding relationships
Feeding relationships are part of a food web
Eg grass-> calf ->maned wolf
Grass -> ant-> woodpecker-> hawk
Algae-> stonefly -> diving beetle-> frog-> pike