SCEC Science Department Assessment Test

Some factors affecting biodiversity are ________________ and ___________________.

The sun, water, and wind are sources of __________________________.

______________________________ destroys the ozone layer.

_______________________ is a source of water pollution.

Plants, animals, and microorganisms co-exist to make up _______________________.

An ecosystem consists of __________ and ________ factors interacting in a specific area.

In ______________________ certain organisms produce energy through chemical reactions.

Energy is transferred between trophic levels in an ecosystem by _________________ .

In ________________________ dead organic matter is broken down into simpler substances.

In ___________ relationships, only one species benefits, and the other is harmed.