All living things are made of cells. What are cells made of - Organs
- Tissues
- Compounds
- Organ systems

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

Which of the following is a good strategy when it comes to desserts

How are fossils used to date organisms?