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Exam 1: A View of Life

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Question 31

Multiple Choice

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A pond ecosystem includes small water fleas which feed on submerged aquatic plants. When the water fleas die, they sink to the bottom of the pond and where they decompose with the help of bacteria. List in order the producer, decomposer, and consumer in this system.

A) water fleas, bacteria, aquatic plants
B) aquatic plants, water fleas, bacteria
C) bacteria, water fleas, aquatic plants
D) aquatic plants, bacteria, water fleas
E) bacterial, aquatic plants, water fleas

F) D) and E)
G) A) and D)

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Question 32

Multiple Choice

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Evolutionary processes lead to organisms that

A) are perfect.
B) function well in a given environment.
C) can only survive in that one environment.
D) have a single adaptive trait.
E) become extinct.

F) A) and B)
G) D) and E)

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Question 33

Multiple Choice

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Phylum Arthropoda is broken into subgroups which include both Arachnida (e.g., spiders) and Insecta (e.g., insects) . As a result, Arachnida and Insecta most likely belong to which classification category?

Kevin is studying predator-prey interactions. One day he notices a spider eating a cricket caught in its web. Later that day, a bird eats the spider. Based on the organisms involved in this study, what level of organization is he studying?

Geese are known to use the magnetic field of the Earth in navigating their twice yearly migrations. This is an example of which characteristic of life?

Populations of amphibians, including frogs and toads, have been plagued by disease and high rates of deformity. A recent study investigated whether problems among the populations have arisen due to poisons from chemicals associated with agriculture. Biologists from the University of Florida collected local adult cane toads (Bufo marinus) from more than 20 different locations. Toads were collected from areas close to agriculture; both large-scale and small-scale farms as well as from suburbs. At collection sites where 50-97% of the adjacent land was farmed, males showed high levels of feminization. Feminized male toads were similar in color to females and had lower levels of testosterone and often also deformed gonads. These changes can lead to sterile males or changes in behavior that prevent mating from occurring. Which of the following statements would be considered a hypothesis for this study?

The circulatory system of a whale is considered an organ system because it is composed of different

A scientist discovers a new application for a common medical procedure that involves taking tissues from one patient and placing them into another patient. The procedure always results in a full recovery for the patient receiving the tissue but results in long-term disability for the donor 10% of the time. According to bioethics, making the decision as to whether this procedure should be allowed in this country should be the responsibility of

In science, a theory

A pond ecosystem includes small water fleas which feed on submerged aquatic plants. When the water fleas die, they sink to the bottom of the pond and where they decompose with the help of bacteria. How many kingdoms are represented in this ecosystem?

The various species of honeycreepers have an assortment of different bills, but all species have a similar size and body shape. This is an example of

Which of the following terms is not correctly matched with a correct example?

Which of the following is matched incorrectly?

Which of the following lists the terms from simplest to most complex?

Female fireflies emit flashes of light that attract males. This communication is an example of which characteristic of life?

An aspiring scientist in a biology class wanted to conduct a study on the affects of cigarette smoke on the web-building ability of spiders. Which of the following statements is an incorrect use of terms pertaining to the scientific method?

Many insects do not see into the red color-range and as a result, many insect-pollinated flowers are colors other than red (e.g., purple and yellow) . This flower coloration would be considered a(n)

Kevin is studying predator-prey interactions. One day he notices a spider eating a cricket caught in its web. Later that day, a bird eats the spider. How many populations are included in his study?

All the chemical reactions that occur in a cell are called

Populations of amphibians, including frogs and toads, have been plagued by disease and high rates of deformity. A recent study investigated whether problems among the populations have arisen due to poisons from chemicals associated with agriculture. Biologists from the University of Florida collected local adult cane toads (Bufo marinus) from more than 20 different locations. Toads were collected from areas close to agriculture; both large-scale and small-scale farms as well as from suburbs. At collection sites where 50-97% of the adjacent land was farmed, males showed high levels of feminization. Feminized male toads were similar in color to females and had lower levels of testosterone and often also deformed gonads. These changes can lead to sterile males or changes in behavior that prevent mating from occurring. Based on this study, what is the control group?