Objectives for Communities and Ecosystems

Objectives for Communities and Ecosystems:

_______CE 1. Define species, habitat, population, community, ecosystem and ecology.

_______CE 2. Distinguish between autotroph and heterotroph.

_______CE 3. Distinguish between consumers, detritivores and saprotrophs.

_______CE 4. Describe what is meant by a food chain, giving three examples, each with at least three linkages (four organisms).

_______CE 5. Describe what is meant by a food web.

_______CE 6. Define trophic level.

_______CE 7. Deduce the trophic level of organisms in a food chain and a food web.

_______CE 8. Construct a food web containing up to 10 organisms, using appropriate information.

_______CE 9. State that light is the initial energy source for almost all communities.

 _______CE 10. Explain the energy flow in a food chain.

_______CE 11. State that energy transformations are never 100% efficient.

_______CE 12. Explain reasons for the shape of pyramids of energy.

_______CE 13. Explain that energy enters and leaves ecosystems, but nutrients must be recycled.

 _______CE 14. State that saprotrophic bacteria and fungi (decomposers) recycle nutrients.

 _______CE 15.  Distinguish between primary and secondary succession and give an example of each type of succession.

_______CE 16. Explain the effects of living organisms on the abiotic environment with reference to the changes occurring during ecological succession to climax communities.

Food Webs & Your Penultimate Assessment

•Create your own food web with 5 to 10 organisms.

•You must include your organism from the Penultimate Assessment.

•Use scientific and common names.

This is due Tuesday for C period and Wednesday for D period.

Test Monday - C period, Tuesday - D period

On Monday for C period ( or Tuesday for D period), you will have a test on populations, the dandelion lab and inter- & intra-specific interactions.

You can find the interactions between species PowerPoint here (the objectives for community interactions are the statements in the packet where you took notes on biotic and abiotic factors --yes you need to know that).

You can find the population objectives here.

You will have 55 minutes for your test.  If you have extended time, please come to consult to start your test early.  At 11:40 you will have a five minute break and at 11:45 we will continue to use the rest of the double period.  Yes, really.