C4.2 Transfers of Energy & Matter Flashcards
1
Q
What is an ecosystem?
A
A group of organisms interacting with each other and the abiotic parts of their environment.
2
Q
What role does the sun play for most food chains?
A
The initial source of energy
3
Q
What is an open system?
A
Both energy and matter can enter and exit the system.
4
Q
What is a closed system?
A
Matter cannot enter or leave (only be recycled), but energy can enter and leave (eg. the Earth).
5
Q
A
