Title: Unit 1 Ecology
1Unit 1 Ecology
- Biology Review PowerPoint
2Review Question 1
- Which of the following chain of energy flow
would give the end consumer the least amount of
energy? - A. Grass? grasshopper ? robin ? hawk
- B. Grass ?mouse ? wolf
- C. Grass ?grasshopper ?frog ?snake ?hawk
- D. Grass? mouse ? snake ? hawk
Where does 90 of the Energy lost actually go
when E is transferred from one trophic level to
the next?
3Review Question 2
- Fungi, such as mushrooms and molds, get their
nutrition primarily by - A producing food through chemosynthesis
- B preying on other organisms
- C decomposing dead organic matter
- D parasitic relationships with plants
Why are decomposers important?
4Review Question 3
- If a population grows larger than the carrying
capacity of the environment, the ______. - A death rate may rise
- B birth rate may fall
- C birth rate may rise
- D death rate may fall
What is carrying capacity?
5Review Question 4
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7Review Question 6
An example of a population is- 1 all the Zapus
hudsonicus in California 2 all the fish in Lake
Erie 3 the number of different species of Felis
in a geographic area 4 the number of maples,
white oaks, spruce, gray squirrels, and owls in a
forest
8Review Question 7
Which of the following practices is MOST likely
to slow the buildup of CO2 in the
atmosphere? From Georgia-End-of-Course
Assessments, Spring 2004 A increased use of
tropical rain forest areas for
agriculture C decreased pesticide use in favor
of biological controls B increased
use of genetically engineered plants D decreased
use of fossil fuels
9Review Question 8
The maintenance of a self-sustaining ecosystem
requires a - 1 constant temperature 2 greater
number of herbivores than producers 3
cycling of materials between organisms
and their environment 4 soil that is acidic
10Review Question 9
A food web is shown below
Which organisms are necessary for the recycling
of Nitrogen? 1 frogs
2 snakes 3 grasshoppers
4 bacteria
11Review Question 10
In a forest ecosystem, which is an abiotic
factor? From North Carolina End-of-Course
Assessments, Goal 5 A amount of rainfall B type
of trees C number of reptiles D size of deer
Why is this considered abiotic?
12Review Question 11
What is the main cause of fish kills in rivers
polluted by fertilizers? From Virginia SOL
Assessments, 2002 Biology A Decreased mineral
sources C Increased water temperatures B Decreas
ed oxygen levels D Increased water levels
13Review Question 12
The diagram below shows a food pyramid.
Which level of the food pyramid contains
consumers with the least biomass? 1 snakes 3
crickets 2 frogs 4 green plants
14Review Question 13
Which letter represents a photosynthetic organism?
- A
- B
- D
- E
15Review Question 14
Study the table below
- Which property of the local ecosystem is being
described? - a. Food production c.
Biodiversity - b. Abiotic conditions d. Energy
interdependence
16Last Question!
The above graph shows how dissolved O2 and CO2
levels changed in a pond over a 24-hour period.
What caused the decrease in O2 concentration
during the night? A increased evaporation
B decreased photosynthesis C increased
respiration D decreased
temperatures