Download Midterm Practice Questions

Midterm Practice Questions
CHAPTER 3
2. _____ Which subatomic particle(s) is/are NOT found in the nucleus of an atom?
a. electrons only
c. electrons and neutrons
b. protons only
d. protons and neutrons
3. _____ If an atom gains or loses an electrons, it is called a(an)
a. molecule.
c. ion.
b. bond.
d. compound.
13. _____ A molecule is organic if
a. it is fresh
b. you can eat it
c. it contains hydrogen
d. it contains carbon
6. The study of the living and non-living parts of our environment and how humans interact with
them is called:
a. Science
b. Technology
c. Environmental Science
d. Biology
7. What do we call the other environmental factors that we want to keep exactly the same between
two groups we are testing?
a. Controlled Group
b. Constants
c. Data
d. Both a and b
8. Humans have babies. Their babies have more babies. The more babies there are, the faster the
population grows, and the faster the rate of population growth. This is an example of:
a. A controlled experiment
b. A positive feedback loop
c. A negative feedback loop
d. The scientific method
9. Which of the following are limitations of studying environmental science?
a. Scale, always changing, not enough variables
b. Too many variables, hard to measure interactions, not enough scientists
c. Scale, too many variables, validity of data is questionable
d. None of the above
10. Mrs. Loch is not here today because she is sick. This is an example of…
a. An observation
b. An inference
c. A judgment
d. None of the above
CHAPTER 4
11. The form of nitrogen most usable to plants (and therefore found in fertilizers) is
a. ammonium
b. nitrogen gas
c. nitrates
d. nitrites
12. Transfer of carbon among organisms depends primarily on
a. fuel combustion and decomposition
b. photosynthesis and respiration
c. soil bacteria and precipitation
d. volcanic activity and organic decay
13. All of the following increase the amount of carbon dioxide in the atmosphere except
a. respiration
b. photosynthesis
c. combustion
d. volcanic eruptions
14. All of the following human behaviors substantially affect the nitrogen cycle in aquatic systems
except
a. burning of fossil fuels
b. using nitrogen fertilizers
c. runoff from farms
d. adding sewage to aquatic systems
15. The primary location of sulfur is the
a. troposphere
b. stratosphere
c. hydrosphere
d. lithosphere
1. Which of these organisms could belong to the same population?
a. A gorilla and an orangutan
b. You and Mr. Baker
c. A zebra and a horse
d. all of the above
2. Fossil fuels and minerals are found in the
a. Atmosphere.
b. Hydrosphere.
c. Lithosophere.
d. Stratosphere
3. Life on Earth depends on interaction of gravity and
a. One-way flow of energy
b. Cycling of energy
c. cycling of matter
d. a and c
11. Autotrophs
a. are known as producers.
b. can live without carnivores
c. carry on photosynthesis.
d. all of the above.
12. All of the following are consumers except
a. Herbivores
b. Carnivores
c. Producers
d. Decomposers
13. From producer to primary consumer, about how much total energy is lost from the system?
a. 10 percent
c. 99 percent
b. 90 percent
d. 20 percent
14. The pyramid which best explains why there are typically only four to five links in a food chain is
the pyramid of
a. Energy Flow
c. Numbers
b. Biomass
d. Matter
15. In a food chain, 14,309 calories of energy is stored in the producers. How much energy is
available for the tertiary consumer?
a. 1.43 cal
b. 1,430.9 cal
c. 143.1 cal
d. 14.3 cal
CHAPTER 5.5-5.6, 4.6-47
1. An organism is classified as a specialist or a generalist based on
a. its range of tolerance
b. its habitat
c. its major source of food
d. all of the above
2. Specialists species
a. tolerate a wide variety of environments
b. are more likely to become extinct
c. eat a wide variety of food
d. have broad niches
3. Which of the following is a specialist?
a. cockroach
b. human
c. fly
d. giant panda
8. A new kitten is added to a home with an established older cat. The older cat is
observed to gobble up its food as well as that of the younger cat. This behavior is
best described as
a. interference competition
b. exploitation competition
c. predation
d. commensalism
13. What best describes the following situation? Butterflies that have traditionally lived
their lives in Southern Mexico have begun to migrate northward, into Texas.
Scientists attribute this behavior to global climate change, claiming these butterflies
are a(n)
a. Predator
b. native species
c. Indicator species
d. keystone species
14. Divergent evolution occurring through natural selection…
a. allows new species to develop from a common ancestor.
b. causes all species to go extinct.
c. allows species to adapt to their environment.
d. None of the above.