Download 3 8 quiz, community interactions, and ecological succession

Do Now: Answer the following questions silently in your
binder. Stay in your seat and silently raise your hand if
you have a question.
1. In your own words, explain the phrase “energy flows through
ecosystems while matter cycles.” You can give examples to help you
explain. (hint: think about photosynthesis and cellular respiration)
2. The following are steps in the carbon cycle out of order. Put the
steps in order.
a. Cellular respiration releases CO2 back into the atmosphere
b. Carbon introduced into the food chain by photosynthesis
c. Carbon moves up the food chain when organisms are eaten
d. CO2 in the atmosphere
3. List the steps required for nitrogen to go from the atmosphere into
plants and animals.
FOCUS
I can show college-readiness by:
6b.1: defining ecological succession
and comparing and contrasting r- versus
k-selected species
6b.2: defining an ecological niche
Do communities change over time?
What is ecological
succession?
the gradual process of replacing one
community of plants and animals with
another
What are the different
types of succession?
Primary succession : starting an
ecosystem where there is no soil
ex.: a volcano erupts and creates
a new island where a new
ecosystem develops
http://www.mrphome.net/mrp/succession.swf
Lichens grow on bare rock and create soil.
Lichens are called pioneer species.
What is the lichens’ niche?
Grasses and other producers move in that can grow in the
small amounts of soil
What is the grasses’ niche?
Shrubs and trees move in.
The stable community that forms is called the climax
community
What is the shrubs’ and trees’ niche?
What are the different
types of succession?
Secondary succession : re-building
an ecosystem on the same soil as
before
ex.: a forest fire burns and a new
forest develops
ecological succession practice
1. Work together using your notes, your handout, and
your textbook (pg 94-95) to answer each question.
2. Stay in your seat and raise your hand to ask any
questions.
Peer Editing
1. Take out your rough draft of your proposal.
2. Find a partner who also has their rough draft.
3. Switch proposals. As you read your partner’s proposal, you will
look for the following:
a. correct format (introduction, 2 body paragraphs, conclusion)
b. convincing (Reading your partner’s proposal makes you want
to follow their proposal)
c. clear (It is easy to understand your partner’s proposal)
d. no spelling and/or grammar mistakes
4. At the end of the proposal, write down your comments for your
partner. Make sure to point out at least one positive part of the
proposal and at least one way to improve the proposal.
Vocabulary Mastery!
1. biotic 2. abiotic
3. climate
4. species
5. population
6. community
7. ecosystem
8. biome
9. biosphere
10. food web
11. food chain
12. trophic level
13. autotroph (producer)
14. heterotroph (consumer)
a. primary consumer
b. secondary consumer
c. tertiary consumer
d. quaternary consumer
15. energy pyramid
16. biomass
17. law of conservation of energy
Instructions:
18. water cycle
a. evaporation
1. pick the 5 most
b. condensation
difficult words
c. precipitation
d. transpiration
2. write those five
e. runoff
words with their
19. carbon cycle
20. nitrogen cycle
definitions (use your
21. law of conservation of mass
notes and/or the
22. photosynthesis
23. cellular respiration
textbook)
24. decomposers
3. make a keyword
25. niche
26. ecological succession
memory
device
for
a. primary succession
each one
b. secondary succession
27. pioneer species
28. climax community
Quiz Instructions:
1. Put your name and class period at the top of the paper.
2. Write your answer to question 6b in complete sentences.
3. Circle your answer for the rest of the questions. You must
give justification for your answer below each multiple choice
questions to receive full credit.
4. Work silently and independently until Mr. Beckerman says
that everyone has finished the quiz.
5. Raise your hand to ask any questions.
Mr. Beckerman wants you to do well!
How do
competition: -/- (both species
populations interact harmed)
with each other?
predation: +/- (one species
benefits, the other is harmed)
symbiosis (populations living close
together)
a. mutualism: +/+ (both species
benefit)
b. commensalism: +/0 (one
species benefits, no effect on the
other)
c. parasitism +/- (one species
feeds off another without killing it)
CFU: community interactions