Unit 3:
Parent/Student/Teacher
Study Night
Energy Flow in Ecosystems, Food Chains and Food
Webs, Biogeochemical Cycles, Biogeography, Biomes
Task 1: Vocabulary Terms
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producer
consumer
herbivore
carnivore
omnivore
scavenger
decomposer
autotroph
heterotroph
10) trophic level
11) photosynthesis
12) respiration
13) evaporation
14) condensation
15) precipitation
16) freezing
17) run off
18) nitrogen fixation
19) biogeography
20) continental drift
21) dispersal
22) exotic species
23) climate
24) biome
Vocabulary Review
 https://quizlet.com/5875898/flashcards
Task 2: Food Chains, Food Webs,
Energy Pyramids
Food Chains: A food chain shows
how each living thing gets food,
and how nutrients and energy are
passed from creature to creature.
Food Web: A network of food chains or feeding
relationships by which energy and nutrients are
passed on from one species of living organisms to
another
Energy Pyramid: When organisms eat other
organisms, energy is transferred. An energy pyramid
can be used to diagram this flow of metabolic
energy.
Cycles of Matter
 Biogeochemical cycle, any of the natural pathways by which
essential elements of living matter are circulated.
Water Cycle
Carbon Oxygen Cycle
Nitrogen Cycle
Biogeography
 the branch of biology that deals with the geographical
distribution of plants and animals.
Continental Drift: Supercontinent
Pangaea
Animation of Continental Drift
 https://vimeo.com/14258924
Organism Dispersal
Animal Dispersal
Limitations to Dispersal
 1. Climate: May not be suitable for the organism
 2. Vegetation: Can’t necessarily eat the plants in an area
 3. Other animals: Predators and parasites
 4. Physical barriers: Rivers, Mountains, Oceans, Deserts
Biomes
 A biome is a community of plants and animals that have
common characteristics for the environment they exist in.
They can be found over a range of continents. Biomes are
distinct biological communities that have formed in response
to a shared physical climate.
Biomes of the World
 Tundra.
 Rainforest.
 Savanna.
 Taiga.
 Temperate forest.
 Temperate grassland.
 Alpine.
 Chaparral.