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Exam 1: The Science of Biology

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Question 21

Multiple Choice

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Multiple independent experiments have demonstrated that phytochrome helps trigger seasonal change responses in the plant such as changing color and loosening of leaves.Plants have the ability adapt to seasonal changes in their surroundings.This statement is an example of:

A) a hypothesis
B) deductive reasoning
C) a theory
D) an experiment

E) C) and D)
F) A) and C)

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Question 22

Multiple Choice

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A key contribution to Darwin's thinking was the concept of limits put on the geometric growth of populations by nature, originally proposed by:

A) Charles Lyell.
B) Karl Popper.
C) Russel Wallace.
D) Thomas Malthus.

E) None of the above
F) A) and C)

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Question 23

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Darwin's ideas on evolution were advanced for his time.His approach to science and natural selection were supported by what main tenet?

You have been assigned to analyze some extraterrestrial material recently collected from Mars.After examining a sample using a microscope you jump up excitedly and shout to your colleagues that you have confirmed the existence of life on Mars.One of your colleagues takes a look at your sample and remarks that all he sees is a single-celled "blob" with little internal structure.Assuming that life on Mars can be classified into similar domains and kingdoms as Earth, to which domain does your "blob" belong?

Based on the literature, you hypothesize that students in traditional biology lectures will have the same grades as students in online biology lectures.You decide to test your hypothesis by comparing grades of students in traditional and online biology lectures over a semester.As a result of the experiment, you observe that the grades in the traditional lectures and the grades in the online lectures are not significantly different.What do these observations allow you to do?

Based on the experimental design, which variable was the dependent variable?

Based in the information provided, the best explanation for the low numbers of spiders and flies in plot 5 is:

An alien from another planet landed on earth.He is fascinated by cars and is determined to figure out how they work.He decides to disassemble one of them and examine each part independently.He removes one of the tires and proceeds to learn all he can about the tire.He then removes one of the headlights and proceeds to learn all he can about the headlight.What type of approach is this alien taking to learn about the car?

A beautiful wood desk you may do your homework on was once a living tree, but after being cut down its tissues died.Now, it only exhibits what property of life?

The species that have had proportionally the most time to diverge are:

It is known that many trees lose their leaves in response to decreasing day length.As a result, you think that Gingko trees may also lose their leaves in response to decreasing day length.This statement is an example of:

The method of reasoning that uses construction of general principles by careful examination of many specific cases is called:

Based on the experimental design, what is the independent variable?

What common life characteristic would cells from a daisy, an apple and a dog all have?

Dr.Ratard was trying to determine the cause of a mysterious epidemic affecting fish in the gulf of New Mexico.His proposal that the deaths were caused by an organism called a protist is considered a(n) _________

The term that Darwin used to describe the concept that those with superior physical, behavior or other attributes are more likely to survive than those that are not so well endowed, and thus are more likely to pass their traits to the next generation, is called:

The same basic array of bones is modified to give rise to the wing of a bat and the fin of a porpoise.Such anatomical structures are called:

What type of reasoning did the pediatrician use to generate her prediction about Luke's future growth in height?

A chemical imbalance in the blood can cause the heart to stop pumping blood, which will have a detrimental effect on other organs.This observation can be attributed to:

Viruses defy characterization as living organisms even though they possess nucleic acids and proteins.The reason why viruses are not considered to be alive is because they