Starting with a diagram of the kidneys and urinary tract of the human, this sheet has questions about excretion, blood concentrations of hormones, gland feedback mechanisms and the effects of some hormones.

Explore homeostasis in animals with this all-encompassing activity. Advanced biology pupils consider a variety of mechanisms for maintaining internal conditions such as temperature and waste products. Eighteen short-answer questions...

Kids can practice the mechanics of writing as they work through this online review sheet. They examine 10 sentences and select the appropriate revision for each sentence with regard to capitalization, punctuation, and spelling. Answers...

Save time and trees by using an online interactive worksheet. Learners examine 10 sentences and select the appropriate revision for each sentence with regard to capitalization, punctuation, and spelling. They then submit their answers to...

Your class can get online and practice editing with this online activity. They read a letter, then examine each underlined section noting if there is or isn't a mistake to be corrected. They then choose the best fix to the proble:...

Here is a letter thanking a kind host, but there are a few mistakes which need to be corrected. Learners read the letter, assess each underlined section, and chose the best fix for each spelling, capitalization, or punctuation problem...

When nature calls, you need to answer. Physiology learners discover that it is a just your body's way of regulating pressure and water content. Along with osmoregulation, they also examine thermoregulation, two vital processes with which...

In this homeostasis worksheet, students answer twelve questions about positive and negative feedback loops and how they effect homeostasis.

AP biologists aspire to respire with this instructional activity. In it, they write short answers to 26 questions about cellular respiration. Topics addressed include the Kreb's cycle, fermentation, and more. Written as a chapter reading...

In this using infinitives in context worksheet, students read an article containing infinitives, then interactively complete 8 sentences with immediate online feedback.

In this comprehension quiz #1 activity, learners interactively complete 8 sentences based on the story given with immediate online feedback.

In this vocabulary review #116 worksheet, students interactively complete 10 sentences by selecting the correct word with immediate online feedback.

Survey the metabolism process from respiration through the production of the ATP molecule with this seven page AP biology learning exercise. Pupils write short answers on the lines provided and label a diagram of the cellular respiration...

In this human body study question worksheet, students define 6 words associated with the human body. They answer 8 short answer questions about the organization and function of the organ systems and organization structure of the human body.

 In this online worksheet students answer a series of 14 essay or short answer questions explaining the DC generator theory. The correct answer is available to check their responses to each question. The questions vary in...