*Question*
If evolution requires cross-pollination, then what does evolution require? Answer choices: - Time and energy - Plant reproduction - cross-pollination - Reproduction - gene flow - coded genes - circulatory systems - animals with backbones
**Answer**
cross-pollination

*Question*
If influenza is not a cell, then which is not a cell? Answer choices: - cigarettes - Chlorophyll - Leptospirosis - layers of fat - an object - anemia - all matter - influenza
**Answer**
influenza

*Question*
If cells cannot live without oxygen, then cells cannot live without what commonly occuring element found on Earth? Answer choices: - Air - matter - Light - fossil fuel - oxygen - carbon - sunlight - water
**Answer**
oxygen

*Question*
If all chemical reactions must first overcome the energy barrier, then what must a chemical reaction overcome before starting? Answer choices: - PV=nRT - heat or cold - reactants - energy barrier - Dehydration - harmful substances - resistance - temperature
**Answer**
energy barrier