Ecosystem

An ____ is a community of interacting organisms and their environment.

• house

• economy

• ecosystem

• surroundings

Ecosystems often contain many ____

• nothing.

• living things.

• non-living things.

• living and non-living things.

Rainforest covers 6% of the earth and produce _____.

• 40% of oxygen.

• 62%% of oxygen.

• 70% of oxygen.

• 98% of oxygen.

All living organisms need resources such as ___

• food, clothes and money.

• car, shelter and money.

• air, house, car and land.

• food, air, oxygen and water.

A sweet, sugary liquid made inside flowers is called ___.

• sap

• honey

• nectar

• chlorophyll

All organisms has a _____ or role to play in the environment.

• dream

• position

• niche

• invasive

Ecosystems depend on many organisms to keep them in ___.

• check.

• balance.

• disruption.

• disarray

Monkeys have long tails and limbs that make them capable of surviving in ______ ecosystems.

• aerial

• aquatic

• arboreal

• fossorial

Lobsters, dolphins, and sharks have special bodies that allow them to thrive in which ecosystem?

• aerial

• aquatic

• fossorial

• terrestrial

Living things not naturally found in that ecosystem and cause damage or throw off the balance of the natural ecosystem are called ___

• complex species

• endangered species

• apex species

• invasive species