Student Resources

BIOLOGY B

CREDIT 2

HMH ONLINE TEXT

Nature | Salmon: Running the Gauntlet - Salmon in the Ecosystem | PBS LearningMediaThis video from Nature discusses the important role of salmon in an ecosystem, highlighting one region where salmon are abundant and another where salmon are scarce. The video describes the ways in which different species depend upon each other and how species are impacted by the presence and absence of salmon. It explains how invertebrates feed on dead adult salmon and, in turn, serve as food for newborn salmon, as well as how bears eat salmon carcasses and spread salmon-generated marine nutrients in the mountains. This video is available in both English and Spanish audio, along with corresponding closed captions.

2.1

Levels of Ecology (HMH)

Comparing Consumers and Producers (HMH)

Build A Food Web (HMH)

Yellowstone Wolves (4:34)

2.2

Competition (HMH)

Predation (HMH)

Symbiosis (HMH)

2.3

Population (HMH)

What Limits Population Growth? (HMH)

Comparing Density-Dependent and Density-Independent Factors (HMH)

Limiting Factors and Carrying Capacity (HMH)

2.4

Biogeochemical Cycle (HMH)

Climate (HMH)

2.5

Desert Biome | PBS LearningMediaDiscover details of the behaviors and habitats of some of the Sonoran Desert's creatures, focusing on the adaptations they use to survive in one of the most extreme environments in the world, in this video segment from NOVA: "A Desert Place". This video is available in both English and Spanish audio, along with corresponding closed captions.

Arctic Tundra | PBS LearningMediaThis video segment from Wild Europe: Wild Arctic describes some of the plants and animals that make up the tundra biome. It also captures the harshness of the treeless arctic environment and the adaptations that different organisms use to survive a year's worth of seasons there.

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