Which of these activities is least disruptive to natural ecosystems? a) burning waste b) building sanitary landfills c) reducing consumption d) using open trash dumps

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature above 37 degrees celsius (98.6 degrees f)? describe what might happen if the temperature decreased by 10 degrees celsius.

How does the human body lever work?

Hormones that bind to plasma proteins