Challenge 2. Biomes & Ecosystems.

What is passed between trophic levels in food chains?

• energy

• fuel

• life

• power

In ______ for your help, I bought you a present.

• change

• convert

• exchange

• pay

Last month I read a _______ fiction book.

• natural

• realistic

• true

• unrealistic

There needs to be a ________ en every ecosystem.

• symmetry

• equality

• balance

• equivalence

The elements in an ecosystem that aren't alive are called...

• dead

• biotic

• organism

• abiotic

All the biomes and the elements inside them are part of the...

• environment

• ecology

• ecosystems

• biomes

Autotrophs are characterised by their...

• dependence

• autonomy

• authority

• freedom

We need the _________ of everyone, or the project will fail.

• team

• determination

• cooperation

• group

Autotroph _____ don't need to eat food.

• animals

• organisms

• heterotrophs

• cells

Herbivores have a ______ on plants.

• dependence

• pressure

• love

• autonomy