What is the source of energy for photosynthesis?
The relationship between a food web and a food chain is most similar to the relationship between a road map and:
Lions eat both zebras and wildebeests. How would the arrows in a food web display this relationship?
What is the role of producers in an ecosystem?
How do primary consumers get their energy?
Wolves eat elk, and elk eat blackberries. Which species is a secondary consumer?
What idea did Colleen Cavanaugh discover through her research on deep-sea food webs?
Which sign represents the role of a decomposer?
Why do scientists use scientific models?