Students are asked: Is our life's purpose over when it's over? What happens to our bodies? They analyze the flow of energy through living systems. Students compare the metabolism of autotrophs with that of heterotrophs. They create a...

Tenth graders observe enzyme activity. They discuss the relationship between drug use and enzyme activity.

In this endocrine system worksheet, students match the correct gland found in the endocrine system to its hormone and target cell(s). They also describe the actions of each gland and hormone combined together.

In this biology learning exercise, 9th graders identify and locate various vocabulary terms related to an introduction to the study of biology. There are 19 biology terms located in the word search.

Students describe how microbial metabolism affect geochemical processes. They define and explain the function of siderophores. They describe two ways bacteria utilize iron and explain why iron availability may limit biological activity.