Lesson 37: Ecology, food chains and populations

Hi,

Everybody enjoys ecology and food chain studies. Here is more for your enjoyment.

This set of powerpoint slides contain the following which are relevant to your biology syllabus:

• energy flow, sunlight energy being converted to chemical energy by photosynthesis

• autotrophs(producers), heterotrophs(consumers), decomposers(soil bacteria and soil fungi)

• food chain (flow of energy through organisms)

• food web, examples of food webs

• pyramids of numbers, biomass, and energy

• carbon cycle

• quiz.

You can ignore the nitrogen and other mineral cycles as well as population studies as they are not in the biology syllabus for this year.

Chapter 3 & 5 Lecture- Ecology & Population Growth

View more OpenOffice presentations from Mary beth Smith.

Cheers