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Ecology: Interactions, Energy Flow, and Biogeochemical Cycles

Study Guide - Learn with Videos

Curated lessons matched to your uploaded material – learn every topic step by step.

Introduction to Ecology

  • Levels of Ecological Study
    05:01
  • Introduction to Ecology Example 1
    02:31
  • Environment vs. Habitat vs. Niche
    01:57

Energy Flow Through Ecosystems

  • Gross Productive Energy vs. Assimilated Energy
    05:28
  • Energy Efficiency in Ecosystems
    06:28
  • Energy Flow Through Ecosystems Example 2
    07:07

Energy & Biomass Pyramids

  • Energy & Biomass Pyramids
    05:41
  • Energy & Biomass Pyramids Example 1
    03:41

Biogeochemical Cycles

  • Biogeochemical Cycles Example 2
    02:40
  • Carbon Cycle
    04:20
  • Nitrogen Cycle
    08:32

Tropisms and Hormones

  • Thigmotropism and Cytokinins
    05:19
  • Plant Hormones and Senescence
    08:18
  • Gravitropism
    05:39

Plant Defenses

  • Herbivore Defenses
    05:37
  • Pathogen Defenses
    08:59

Animal Behavior

  • Migration and Altruism
    07:15
  • Mating and Parental Care
    03:59
  • Foraging
    04:50