Download Name:__________________________ Date: ____________Period:_____ Unit 1 EXAM 9/17/09

Name:__________________________
Agenda Week of 7 Sep – 12 Sep 2009
Date: ____________Period:_____ Class website: www.marric.us/teaching
Unit 1 EXAM 9/17/09
Standards: 6. c. Students know how
fluctuations in population size in an
ecosystem are determined by the relative
rates of birth, immigration, emigration,
and death.
6. e. Students know a vital part of an
ecosystem is the stability of its producers
and decomposers.
6. f. 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.
A few more review questions
For Exam on 9/17/09
1. What is the most common explanation for population growth by a
non-native (invasive) species? Recall that invasive species are
organism not normally found in the area and may have been
introduced into an area by humans.
2. A community of organisms interacting with abiotic environmental
factors is called a(an)__________________.
3. A group of similar-looking organisms that breed with each other
and produce fertile offspring make up a(an)________________
and a(an)_________________ if they live in the same area.
Monday 9/7/09 – Labor Day
HW: Ch 3 Sci Notebook
4. The ultimate source of energy for life on Earth is the _________.
Tuesday 9/8/09
5. What is the variety of species in a given area called?
_____________________
Quiz #4 – 10 minutes
Population Dynamics K/r strategies
HW: Ch 4 Population Study Guide
-
7. List three reasons why habitat protection is important.
Wednesday 9/9/09 – Late Start
-
Review Quiz Results
Review Ch 4 Study Guide Collect
HW: Ch 4/5 Concept Map
Symbiotic
Relationships
Thursday 9/10/09 –
-
Exchange and Correct Conc. Maps
Food Web Analysis
HW: Food Pyramid from Food Web
A
Commensalism
C
Friday 9/11/09 –
Complete Food Web and Analysis
HW: Study for EXAM on Th/Fr 9/17
Practice Questions and Analysis
-
Parents/Guardian –



E. coli living in human
intestines
B
Heartworms
living inside dog
The maintenance of a self-sustaining ecosystem requires a
I have reviewed my child’s activities
_________________________.
and homework for the week of
The water cycle would not occur if plenty of water were present, but
9/7/09 – 9/11/09.
__________________________ was missing?
I understand that is important for
Fungi, such as mushrooms and molds, get their nutrition primarily by
me to make sure that my child
____________________________________
is studying to be prepared for
the quiz and has completed all assignments this week.
There will be a Unit EXAM on 9/17/09
Parent/Guardian Printed Name
Signature
Date
Bell Ringers: Week of 7 Sep – 11 Sep 2009
Monday – Labor Day
Tuesday – While visiting a history museum in Montreal, Danielle observes a graph on display that records the
number of lynx (predator) and hare (prey) trapped in the Hudson Bay area between the years 1845 and 1935.
The graph has two different lines one each for lynx and hares. She notices that the two lines on the graph
follow a pattern. Which pattern does she observe?
A. Both hare and lynx populations remain constant.
B. Both hare and lynx populations rise and fall together.
C. The hare population decreases shortly after the number of lynx decreases.
D. The lynx population decreases shortly after the number of hares decreases.
Explain.
Wednesday Once trees covered twice as much land as they do today. Which of the following is primarily responsible for this
tremendous loss of trees?
a. hazardous waste
c. carbon dioxide in the atmosphere
b. deforestation
d. diminishing ground water supply
Local and federal legislation have placed limits on the amount of nitrogen-containing fertilizers to be tolerated
in field run-offs into a lake. The reason for this legislation is that run-off of the fertilizers would most likely
produce _______.
A increased algae growth.
C evaporation of ground water.
B more acidic lake water
D fertility of predatory fish.
Explain what would happen next to the oxygen levels available for fish.
Thursday - If a substance undergoes biological magnification, it must be ______.
a. radioactive
b. non-radioactive
c. biodegradable
d. concentrated inside an organism
Explain.
Friday - Which organism/s is affected negatively by increased temperatures? Explain.
A FEW MORE REVIEW QUESTIONS
FOR EXAM ON 9/16/09
1. What is the most common explanation for population growth by a non-nave (invasive)
species? Recall that invasive species are organism not normally found in the area and may
have been introduced into an area by humans. The invasive species find unoccupied
niches where competition pressures are low.
2. A community of organisms interacting with abiotic environmental factors is called a(an)
Ecosystem.
3. A group of similar-looking organisms that breed with each other and produce fertile
offspring make up a(an) species and a(an) population if they live in the same area.
4. The ultimate source of energy for life on Earth is the sun.
5. What is the variety of species in a given area called? biodiversity
According to the food
web:
6.Which organism(s) is a carnivore?
Snake, hawk, and lizard
7. Which organism(s) is an omnivore?
Mouse and bird
8. Which organism(s) is a herbivore?
Ants, chipmunk, and grasshopper
9. Which organism(s) is a producer?
Cactus and shrub
10. A top predator may increase the diversity of species
lower on the food chain by decreasing competition
amoung the survivers.
10. List three reasons why habitat protection is important.
Species do not live independently.
Protecting habitat protects species
Without habitat, the balance of nature could be disrupted.
11.In Sacramento, automobile exhausts cause dirty, brown haze known as smog.
12. Ecosystem connectivity must be considered because human pollution travels by wind,
river, and ocean currents.
Identify the
Producers
Herbivores
Omnivores
Carnivores
Explain why removing the snake from this food web might
result in a decrease in the grasshopper population