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TLS Online TPP Program

#Question id: 9159

Which of the following investigations would shed the most light on the future distribution of organisms in temperate regions that are faced with climate change?

#Unit 9. Diversity of Life Forms

  1. Remove, to the mineral soil, all of the organisms from an experimental plot, and monitor the colonization of the area over time in terms of both species diversity and abundance.

  2. Look at the climatic changes that occurred since the last ice age and how species redistributed as glaciers melted, then make predictions on future distribution in species based on past trends.

  3. Compare and contrast the flora and fauna of warm/cold/dry/wet climates to shed light on how they evolved to be suited to their present-day environment.

  4. Quantify the impact of man's activities on present-day populations of threatened and endangered species to assess the rate of extirpation and extinction.
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TLS Online TPP Program

#Question id: 30

#Unit 1. Molecules and their Interaction Relevant to Biology

Amongst the following chemical elements that are essential to organisms, which of the following set of elements have an atomic number above that of selenium?
TLS Online TPP Program

#Question id: 31

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is the pair of enantiomers from the following substance? 
TLS Online TPP Program

#Question id: 32

#Unit 1. Molecules and their Interaction Relevant to Biology

 Humans maintain a nearly constant level of hemoglobin by continually synthesizing and degrading it. This is an example of a(n):
TLS Online TPP Program

#Question id: 33

#Unit 1. Molecules and their Interaction Relevant to Biology

Use the following figure to answer the question. The figure shows the structures of glucose and fructose. These two molecules differ in the
TLS Online TPP Program

#Question id: 34

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is true of any (S)-enantiomer?
TLS Online TPP Program

#Question id: 35

#Unit 1. Molecules and their Interaction Relevant to Biology

Arrange the following molecular components of an E. coli cell in terms of their percentage of total weight cell.