If fish breathe with gills, then what do aquatic animals breathe with? Answer choices: - Water - tails - nose - air - gills - oxygen - lungs - mussels
gills

If fossil fuels are used for generating heat by burning, then what is used for generating heat by burning? Answer choices: - Calcium carbonate - carbon dioxide - fossil fuels - clouds - peachleaf willow - space - calcite - sunlight
fossil fuels

If as a plant grows, photosynthesis increases, then as a plant grows, what increases? Answer choices: - photosynthesis - soil - minerals - nutrients - genetic diversity - Quality of life - gene flow - gold
photosynthesis

If oxygen is essential for fungi cellular respiration, then which needs fungi need to survive? Answer choices: - Energy - food - alveoli - oxygen - peat - bushes - bacteria - trees
oxygen