MST DQ Week 5
Name: _________________________________________
4/21/2014
1. The following diagram shows a food web for a Mississippi forest floor.
How would the disappearance of dead leaves from the forest floor affect
spiders?
A. Their population would decrease because they would have fewer dead
leaves to eat.
B. Their population would increase because they do not depend directly on
dead leaves for energy.
C. Their population would decrease because they eat animals that depend on dead leaves for energy.
D. Their population would increase because they could eat more centipedes that do not eat dead leaves either.
Justification---_______________________________________________________________________
2. The following Punnett square, in which (Y) are yellow flowers and (y) are purple
flowers, is incomplete. Which genotype should replace the question mark?
A. Y
B. YY
C. Yy
D. yy
Justification: __________________________________________________
4/22/2014
1. Lisa learned that there may be a link between global warming and stronger
hurricanes. She decided to follow these guidelines in order to reduce levels of carbon
dioxide (CO2).
• Walk more.
• Use recycled paper.
• Use energy-efficient appliances.
• Use fluorescent bulbs instead of incandescent bulbs.
Which statement logically explains whether these methods are useful in decreasing global warming?
A. These methods are not useful because they all release CO2 into the atmosphere.
B. These methods are not useful because they all release heat energy into the atmosphere.
C. These methods are useful because they all reduce the amount of CO2 released into the atmosphere.
D. These methods are useful because they all reduce the use of renewable energy sources instead of fossil fuels.
Justification---_______________________________________________________________________
2. In one forest ecosystem, coyotes and bobcats are carnivores, while white-tailed deer and rabbits are herbivores.
Which of these describes the flow of energy in this ecosystem?
A. From plants to deer, from deer to coyotes
B. From rabbits to deer, from deer to coyotes
C. From plants to rabbits, from rabbits to deer
D. From bobcats to rabbits, from rabbits to plants
Justification---_______________________________________________________________________
4/23/2014
1. Scientists working in agricultural technology are researching naturally occurring chemicals that attract insects.
Which of these describes a commercially beneficial use for this research?
A. To get insects to consume excess agricultural products
B. To find ways to lure agricultural pests away from crops
C. To trap certain kinds of insects so that they can be studied
D. To ensure that birds in various areas have enough insects to eat
Justification---_______________________________________________________________________
2. Scientists are studying the use of vegetable oil as an automotive fuel. Which of these is a logical justification
for continuing this research?
A. The research may also help scientists develop new vegetables for use as food.
B. Vegetable oil can be purchased at grocery stores, so there would be less need for fueling stations.
C. Using vegetable oil will increase the number of cars that can be used by increasing the available fuel for cars.
D. The fossil fuel used to make gasoline is becoming a limited resource, while vegetable oil is made of plants
crops that are renewable.
Justification---_______________________________________________________________________
MST DQ Week 5
Name: _________________________________________
4/24/2014
1. Which of these would happen to the cell if cellular respiration stopped?
A. It would not have the energy it needs to perform its functions.
B. It would grow larger because it would not be able to dispose of wastes.
C. It would have to access backup energy trapped in the chemical bonds of food.
D. It would no longer be able to passively transport materials across its cell membrane.
Justification---_______________________________________________________________________
2. Soils contain chemical nutrients that help plants grow. Different plants require different amounts of nutrients.
Scientists can test soil samples to determine how much of certain chemical nutrients are present. A manufacturer
wants scientists to develop a soil in which any kind of plant could grow equally well. Which statement explains
whether the ability to make this type of soil is possible?
A. Yes, most soils are those in which any kind of plant could grow.
B. No, there is no way to tell what nutrients are needed by any kind of plant.
C. Yes, a mixture of the soils that contained all the nutrients could nourish any plant.
D. No, a soil in which certain kinds of plants grow well might not be as good for other types of plants.
Justification---_______________________________________________________________________
4/25/2014
1. A study of greenhouse gas emissions was conducted for Mississippi. The results of the study
were divided by work category: waste, agriculture, industry, and land use. The following graph
shows these data. Which of these is a logical reason for using renewable
resources in Mississippi?
A. Using renewable resources for energy generation would improve the
efficiency of land use.
B. Using renewable resources for energy generation would eliminate all
emissions of greenhouse gases.
C. Using renewable resources for energy generation would be less expensive
than the means currently used.
D. Using renewable resources for energy generation would greatly reduce
the total amount of greenhouse gas emissions.
Justification---_________________________________________________
_____________________________________________________________
2. Hailey studied a salt marsh ecosystem. She made the following list of
some of the organisms that live in a salt marsh:
• Hawks: top predators
• Sparrows: insectivores
• Grasshoppers: herbivores
• Cordgrass: primary producer
Which food chain shows a probable path of energy in this ecosystem?
A. Cordgrass Grasshopper Sparrow Hawk
C. Cordgrass Hawk Grasshopper Sparrow
B. Hawk Cordgrass Grasshopper Sparrow
D. Hawk Sparrow Grasshopper Cordgrass
Justification---_______________________________________________________________________