How did I study? Did you:

1. Reread the book2. Reread q notes—maybe take more3. Use the learning objectives on the calendar4. Use the Internet5. Practice writing out concepts—blank paper

technique

Food Webs

• Trophic levels using numbers• Labeling with key terms: producer or

autotroph, decomposer, first level consumer or herbivore, etc.

• Arrow points to the organism doing the eating• Arrows represent a transfer of chemical

energy and matter• Energy flows and matter cycles

Cycles

• Carbon: Photosynthesis, Cell Respiration, Burning, Feeding

• Nitrogen: Nitrogen fixation, feeding, uptake by plants, decomposition, denitrification

Be able to sketch the cycles from scratch and label!

Population Dynamics

• Exponential vs. Logistic growth models• Rate of change = change in #/change in time• Density = #s/area• Carrying capacity and limiting factors• Immigration, emigration, birth and death rates

Community Ecology

• Predator- prey graphs—remember they do not cross

• Competition—species are attempting to use the same resource in the same place and time

• Predation—capture and feed on another• Symbiosis (two species live closely together):

mutualism (flower and insect pollinators), commensalism, parasitism

Energy Pyramid

• Look at the picture in your text on page 72 of the Energy Pyramid.

• Be able to explain how much energy is transferred from one trophic level to the next and what happens to the rest

• Good Luck!!