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Exam 1: A View of Life

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Question 31

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Match the items below with their descriptions:

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Question 32

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Dr. James isolated Staphylococcus aureus, a type of bacteria, from the leg wound of a ten-year-old boy. He suspected these bacteria would grow better at body temperature than room temperature (72 $\degree$ F), but thought that he should collect data to support his thinking. Dr. James introduced the same number of Staphylococcus bacteria into each of six test tubes containing the same type and amount of nutrient broth. Three test tubes were incubated at 98.6 $\degree$ F (Group 1), while three test tubes (Group 2) sat at 72 $\degree$ F. After 24 hours, Dr. James compared the turbidity (indicative of growth) of all six tubes and rated each on a scale of 0 - 4. 0 indicates no turbidity (no growth), while 4 indicates high turbidity (high growth). The following data was collected: -Would you consider this to be a controlled experiment?

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Yes, this may be considered a controlled...

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Question 33

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Emergent properties can be used to distinguish living organisms from nonliving things.

Biodiversity in a particular ecosystem

Which listing correctly indicates a sequence of increasing biological organization?

The dependent (responding) variable in this experiment is

Living organisms show biological organization and other common characteristics of life.

There is debate as to whether religious creationism should receive 'equal time' in the science classroom. Many firmly disagree with creationism being taught in public schools, maintaining that science does not address religious and supernatural concepts. How would you support this statement?

Humans have an exaggerated impact on the ecosystem through their use of extra sources of energy and raw materials, and the production of extra wastes that must be handled.

Dr. James isolated Staphylococcus aureus, a type of bacteria, from the leg wound of a ten-year-old boy. He suspected these bacteria would grow better at body temperature than room temperature (72 $\degree$ F), but thought that he should collect data to support his thinking. Dr. James introduced the same number of Staphylococcus bacteria into each of six test tubes containing the same type and amount of nutrient broth. Three test tubes were incubated at 98.6 $\degree$ F (Group 1), while three test tubes (Group 2) sat at 72 $\degree$ F. After 24 hours, Dr. James compared the turbidity (indicative of growth) of all six tubes and rated each on a scale of 0 - 4. 0 indicates no turbidity (no growth), while 4 indicates high turbidity (high growth). The following data was collected: -Evaluate the data presented here to reach a conclusion. Would you reject or accept the null hypothesis.

Both living and nonliving entities exhibit homeostatic controls.

Studying a brick does not predict the design of a skyscraper. Intense examination of muscle tissues does not allow you to predict the design of a kangaroo or clam. The structure of chlorophyll does not dictate the unique structure of a tree. These cases demonstrate

Tropical rainforests have many species that are found in great abundance. A study in the Brazilian rainforest found 487 tree species growing on a single hectare (2.5 acres) . In the US and Canada together, there are only 700 species of trees on millions of acres. In one park in a Peruvian rainforest, scientists have identified over 1300 species of butterflies, while in all of Europe there are approximately 320 butterfly species. These findings suggest that

Which of the following does NOT represent homeostasis?

A doctor is testing the effectiveness of a new antibiotic. He gives the first group of patients a placebo, a second group receives antibiotic A while the third group receives antibiotic B. Which of the groups is considered the control group?

Living organisms are composed only of organic elements, whereas nonliving things are made up of inorganic elements.

A university biology department wishes to hire a scientist to work on the relationships among the wolves, moose, trees and physical features on an island. If you were charged with writing the job description, you should title the position

Both living and nonliving entities adapt to the environment.