Tag: organisms and their environment

water cycle

Covers ecological pyramids, energy flow through trophic levels, and nutritional deficiency diseases including malnutrition and vitamin deficiencies

biogeochemical cycles - gaseous

Questions covering biogeochemical cycles including nitrogen, carbon, oxygen, and phosphorus cycles; nitrogen fixation; atmospheric chemistry; and environmental impacts on these cycles

nitrogen cycle

earth's energy budget

Population ecology concepts including density, carrying capacity, and growth models

nutrient cycles

Questions about energy transfer through trophic levels, photosynthesis, and solar radiation utilization in ecosystems

digestion of food