Posted by: mrborden | September 21, 2013

Week 4 Ecology Food Webs


Monday Sept 23 2013
QFD: Of all human powers operating on the affairs of mankind, none is greater than that of competition. Henry Clay
?FD: Name 2 carnivores, 1 producer and 1 decomposer in your food web
Objective: BSS 6f. Students know at each link in a food web some energy is stored in newly made structures but much energy is dissipated into the environment as heat. This dissipation may be represented in an energy pyramid.
Student will:
Differentiate between Mutualism, Commensalism, and parasitism
Explain the similarities and differences between autotrophs and the various types of heterotrophs
Interpret the correct way to answer questions on the handout starvation v Predation
Demonstrate the ability to read and select the main ideas using Cornell note taking techniques
1) Check food web Picture due
2) Go over Handout on Starvation V predation again
3) Read pg 15 symbiosis through- 18
4) cornell notes

Tuesday Sept 24
QFD: Success is not a journey, it is a destination – Arthur Ashe
?FD: Differentiate between mutualism and commensalism
Objective:BSS 6f. Students know at each link in a food web some energy is stored in newly made structures but much energy is dissipated into the environment as heat. This dissipation may be represented in an energy pyramid.
Student will:
Identify the differences between a food chain and a food web
Interpret a Food Web by creating a Tree concept map
Compare and contrast the energy pyramid and the biomass pyramid
1) Finish Reading pg 15 symbiosis through- 18 (groups)
2) Cornell Notes
notes6fp1
notes6fp2
Wed Sept 25
QFD: He who is drowned is not troubled by the rain. Chinese Proverb
?FD: How much energy is lost between each trophic level?
Objective: BSS 6f. Students know at each link in a food web some energy is stored in newly made structures but much energy is dissipated into the environment as heat. This dissipation may be represented in an energy pyramid.

1) Quiz 20 questions (100pts)
1 Following a major change in an ecosystem, an ecosystem is most likely to survive if there is __________.
A great diversity of species
B a high birth rate
C a small population
D little or no competition

2 Besides habitat fragmentation, pollution and habitat loss, __________ can affect biodiversity by taking over niches of existing species and eventually replacing them.
A biogenesis
B abiotic factors
C Exotic or invasive species
D native species

3 Which of the following statements is true concerning biodiversity?
A Biodiversity is the lack of a diversity of species in an area.
B Biodiversity is the diversity of species in an area, which makes an ecosystem better prepared for major changes.
C Biodiversity is the diversity of species in an area, which leaves an ecosystem ill equipped to handle major changes.
D None of the above

4 The number of different species that live in a certain area is the most common measure of __________.
A biodiversity
B ecosystems
C food webs
D habitats

5 The biggest threat to biodiversity is __________.
A extinction
B habitat loss
C exponential growth
D captivity

6 When an entire field is converted into a shopping mall, this type of __________ affects the biodiversity living in the field.
A habitat stagnation
B climate change
C deforestation
D habitat loss

7 If the biodiversity of an ecosystem is increased, the ecosystem will become __________.
A more stable
B less stable
C less resilient
D more resistant to evolution

8 Biodiversity can be altered by __________.
A unexpected changes in the climate of an ecosystem
B a fire in the ecosystem
C a flood in the ecosystem
D All of the above

9 A large number of individuals in a single species of desert tortoise die following a severe drought in the ecosystem. Which of the following MOST accurately describes the overall effect on the ecosystem?
A total tortoise population number will decrease, biodiversity will stay the same
B total tortoise population number will decrease, biodiversity will increase
C total tortoise population number will increase, biodiversity will stay the same
D total tortoise population number will increase, biodiversity will increase

10 Which of the following is MOST likely to cause a decrease in biodiversity?
A an immigration of species from another ecosystem
B a decrease in the total population of an ecosystem
C an increase in the total population of an ecosystem
D a species extinction in the ecosystem due to climate change

11 The act of one organism consuming another for food is called:
A competition
B predation
C starvation
D digestion

12 Two organisms that live together in close association is called:
A) mutualism
B commensalisms
C parasitism
D symbiosis

13 When one organism benefits from harming another organism it is:
A) mutualism
B commensalisms
C parasitism
D symbiosis

14 Two species that live together and benefit from one another is:
A) mutualism
B commensalisms
C parasitism
D symbiosis

15 When one organism benefits and the other organism isn’t harmed nor is it helped when they are associated is called?
A) mutualism
B commensalisms
C parasitism
D symbiosis

16 An organism that produces its own food and energy is a
A autotroph B heterotroph C producer D both A + C

17 Heterotrophs that consume both plants and animals are :
A herbivores B omnivores C carnivores D detritivores

18 Organism that gain energy from decomposed organic material are :
A herbivores B omnivores C carnivores D detritivores

19 Draw a food chain from an herbivore to a carnivore

20 Give an example of the following:
Producer, primary consumer, secondary consumer , tertiary consumer

EC** Explain why only 10% of the energy is available for the next trophic level in an ecological pyramid
Thursday Sept 26 2013
QFD: Observations always involve theory. ~Edwin Hubble
?fd: Did you get 70% or greater right on the quiz? why or why, not explain
Objective:BSS 6f. Students know at each link in a food web some energy is stored in newly made structures but much energy is dissipated into the environment as heat. This dissipation may be represented in an energy pyramid
Students will analyze a energy pyramid and describe the various trophic levels
Students will create an energy pyramid and interpret the model to answer higher order thinking questions
1) Groups – Energy Pyramid questions
7.5C.RQ.EnergyPyramidActivity
Friday Sept 27 2013
QFD: We must use time as a tool, not as a crutch. John F. Kennedy
?FD: What is the difference in numbers of species between the top energy level and the bottom energy level?
Objective: BSS 6f. Students know at each link in a food web some energy is stored in newly made structures but much energy is dissipated into the environment as heat. This dissipation may be represented in an energy pyramid.

How much Energy is lost each level in the energy Pyramid
(polls)

1) Describe a healthy ecosystem
2) What is biodiversity, give examples
3) Name 3 different biomes
4) ___________ of the worlds surface is covered by water
5) You can help biodiversity by building a ______________
6) The bird box is nailed to the ________ side of a tree or house
7) What type of biome does the scientist examine ___________________
8) What happens when one piece or organism is taken away or becomes extinct ?
9) Is a farm an ecosystem? Explain
10) How do humans affect ecosystems?
11) Name 3 extinct organisms
12) Name 3 object the boy sees when hje examines the pond water
13) The largest ecosystem is ______________
14) What can you do to help biodiversity ? Name 3 things
15) Mold is in ____________ and _____________

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