1. STUDY GUIDE FOR SCIENCE TEST
Populations, communities, biomes, classification

3. Population terms
Anything that restricts the size of a population = limiting factor (water, food, disease, predators, natural disasters)
Largest number of individuals of 1 species that can live in an ecosystem at one time = carrying capacity

4. Community terms

5. biomes ESTUARY – where rivers/streams meet the ocean; mixed salinity
TUNDRA – cold, dry, treeless; permafrost; North Pole
TROPICAL RAIN FOREST– large amounts of rain, warm temps
TEMPERATE DECIDUOUS FOREST– most common forest in US; leaves change colors, plants stop growing in winter, begin again in spring

6. classification Prokaryote = no nucleus Eukaryote = nucleus
BOTH have genetic material
Scientists classify based on…
Cell type, ancestors, behaviors, reproduction, nutrition/feeding

7. review MATTER cycles through an ecosystem.
water, nitrogen, carbon, oxygen
ENERGY flows through an ecosystem.
ARROWS show energy FLOW.