Energy flow and food webs Flashcards
(6 cards)
1
Q
What is the source of energy in all food chains?
A
The sun (light energy)
2
Q
What are producers?
A
Photosynthesising organisms
3
Q
What do food chains show?
A
Energy transfers using arrows which show the direction of the flow of energy
4
Q
What happens to the energy available?
A
Energy is lost through each trophic level
5
Q
What happens to the rest of the energy?
A
It is lost: thermal, excretion, reproduction, movement, non-edible parts (roots…)
6
Q
Name the trophic levels
A
Trophic level 1: producer
Trophic level 2: primary consumer HERBIVORE
Trophic level 3: secondary consumer CARNIVORE
