Which best describes the role of sunlight in the process of photosynthesis? A Light provides the energy to make sugars from smaller carbon compounds.
B Light provides the energy to break down sugars into smaller molecules.
C Light provides the energy to combine oxygen and hydrogen to generate water.
D Light provides the energy to build large carbohydrates from simple sugars.

Which blood cell spend most of their time in the lymphatic system?

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.