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- 1. Multiple Choice
The table shows associated organisms and the types of effects of their association. Based on the information in the table, which pair of organisms likely exhibits a predator-prey relationship?
A. lion and cheetah
B. coyote and rabbit
C. whale and barnacle
D. yucca flower and yucca moth
- 2. Multiple Choice
A factory discharges large amounts of warm water into a nearby lake. What would be the likely effect on the fish in the lake?
A. The fish would absorb more dissolved oxygen.
B. The reproductive rate of the fish population would increase.
C. The fish would immediately adapt to the temperature change.
D. The reproductive rate of the fish population would decrease.
- 3. Multiple Choice
Which organism should be added to a food chain if a student is asked to give an example of a mutualistic relationship with plants?
A. Rabbits; they feed exclusively on plants.
B. Birds; they feed on the seeds of plants.
C. Bees; they feed on flowers’ nectar and in turn pollinate them.
D. Rats; they feed on plants’ flowers and decrease the populations of plants.
- 4. Multiple Choice
Study the chemical equation. Is the chemical equation properly balanced?
A. No. There are two chlorine atoms on the reactant side and only one chlorine atom on the product side.
B. No. There are two chlorine atoms on the product side and only one chlorine atom on the reactant side.
C. Yes. There is one of each atom on the right side of the equation.
D. Yes. The number and type of atoms on each side of the equation are the same.
- 5. Multiple Choice
The diagram shows the energy pyramids for two ecosystems, P and Q. Which statement is true about both ecosystems?
A. The maximum amounts of energy available are at trophic level 1 in both Ecosystems P and Q.
B. The maximum amounts of energy available are at trophic level 3 in Ecosystem P and trophic level 4 in Ecosystem Q.
C. The total amounts of energy available in both Ecosystems P and Q decrease from trophic level 2 to 1.
D. The amount of energy available to trophic level 2 of Ecosystem P is equal to the amounts of energy available to trophic levels 3 and 4 of Ecosystem Q.
- 6. Multiple Choice
Which action represents an example of poor stewardship?
A. A fishing boat throws young fish that get caught in its nets back into the water.
B. A person hunts an elephant for the ivory in its tusks.
C. A class picks up trash that washes up on the shores of a river.
D. A student separates recyclable bottles from a pile of trash.
- 7. Multiple Choice
A student develops a model to represent “community” as a level of organization within an ecosystem. Which list of items should the student choose for the model?
A. six saguaro cacti and a cup of sand
B. three sand dunes and a cup of water
C. three saguaro cacti, two rattlesnakes, and a cup of sand
D. three saguaro cacti, five roadrunners, and two rattlesnakes
- 8. Multiple Choice
A teacher draws a particle diagram of a substance on the board. Which statement likely describes the identity of the substance?
A. The substance is a solid because the particles do not take up the shape of the whole container because they are packed closely together.
B. The substance is a liquid because the particles can slide past one another inside of the container because of more space between the particles.
C. The substance is a solid because the particles are at the bottom of the container.
D. The substance is a liquid because the particles take the shape and fill the whole container.
- 9. Multiple Choice
Which design feature of a house contributes most
strongly to conservation of non-renewable energy
resources?
A. more volume in the house per person
B. effective insulation of windows and ceilings
C. floor surface areas made as large as possible
D. use of wood instead of concrete for construction
- 10. Multiple Choice
Which energy resource will eventually be depleted?
A. wind
B. solar
C. natural gas
D. geothermal
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