Practice Questions

TLS Online TPP Program

#Question id: 1040

Why might it be easier to determine the bacterium that caused pneumonia than one that caused a wound infection?

#Unit 4. Cell Communication and Cell Signaling

There are very few microorganisms that can cause pneumonia, while there are many that can cause wound infections.
Bacteria that cause pneumonia can be identified with few tests. Many bacteria are normally found on the skin and may be in the wound complicationg indentification of the pathogen.
We have much better tests for bacteria in the lungs than we do in wounds.
The techniques of 16S rRNA sequencing are easier to perform on a sample taken from the lungs than a sample taken from a wound.

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TLS Online TPP Program

#Question id: 13183

#Unit 10. Ecological Principles

The MacArthur-Wilson equilibrium model of island biogeography predicts the number of species found on islands. The figure below depicts two volcanic islands located off a section of mainland coast.

According to the MacArthur-Wilson model, how would the number of bird species change from the time of an island's formation (assuming it remains constant in size and isolation)?

TLS Online TPP Program

#Question id: 13182

#Unit 10. Ecological Principles

The MacArthur-Wilson equilibrium model of island biogeography predicts the number of species found on islands. The figure below depicts two volcanic islands located off a section of mainland coast.

The MacArthur-Wilson model predicts that the relative numbers of bird species on the mainland and two islands would be

TLS Online TPP Program

#Question id: 13181

#Unit 10. Ecological Principles

Generally speaking, deserts are located in places where air masses are usually

TLS Online TPP Program

#Question id: 13180

#Unit 10. Ecological Principles

Which of the following is responsible for the summer and winter stratification of deep temperate lakes?

TLS Online TPP Program

#Question id: 13179

#Unit 10. Ecological Principles