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Unit 1 Ecology

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UNIT 1 ECOLOGY Biology Review PowerPoint Review Question 1: Which of the following chain of energy flow would give the end consumer the least amount of energy? – PowerPoint PPT presentation

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Title: Unit 1 Ecology


1
Unit 1 Ecology
  • Biology Review PowerPoint

2
Review 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?
3
Review 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?
4
Review 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?
5
Review Question 4
  • NY Regents
  • BIO

6
(No Transcript)
7
Review 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
8
Review 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
9
Review 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
10
Review 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
11
Review 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?
12
Review 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
13
Review 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
14
Review Question 13
Which letter represents a photosynthetic organism?
  1. A
  2. B
  3. D
  4. E

15
Review 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

16
Last 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
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