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.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

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.

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.