A. The distribution and abundance of organisms is determined by the interactions between organisms, and between organisms and the non-living environment.
B. Energy and nutrients move within and between biotic and abiotic components of ecosystems via physical, chemical and biological processes.
C. Human activities and natural events can have profound effects on populations, biodiversity and ecosystem processes.
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Original Student Tutorials Science - Grades 9-12
Explore examples of mutualism, competition, and predation in the Kenyan savannah ecosystem.
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Original Student Tutorial
Explore examples of mutualism, competition, and predation in the Kenyan savannah ecosystem.
Type: Original Student Tutorial
Tutorial
When a malaria-carrying mosquito bites a human host, the malaria parasite enters the bloodstream, multiplies in the liver cells, and is then released back into the bloodstream, where it infects and destroys red blood cells. This animation will help you to understand the process of malarial infection.
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This video shows mating displays and courtship behavior of Birds of Paradise. These birds display bright colors and visually stunning behaviors during courtship.
Type: Video/Audio/Animation