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TLS Online TPP Program

#Question id: 12580

When levels of CO2 are experimentally increased, C3 plants generally respond with a greater increase in productivity than C4 plants. This is because

#Section 5: Applied Ecology & Evolution
  1. C   plants are more efficient in their use of CO2
  2. C   plants are able to obtain the same amount of CO2 by keeping their stomata open for shorter periods of time.
  3. C4 plants don’t use CO2 as their source of carbon.
  4. C3 plants are more limited than C4 plants by CO2 availability because of transpirational water loss.
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TLS Online TPP Program

#Question id: 12153

#Section 2: Evolution

Which of the following is not a resource? 
TLS Online TPP Program

#Question id: 7454

#General Aptitude

What is the angle between the minute and hour hand of a clock at 7 : 35 ?
TLS Online TPP Program

#Question id: 12286

#Section 1: Ecology

Keystone predators can maintain species diversity in a community if they
TLS Online TPP Program

#Question id: 12152

#Section 2: Evolution

When immigration from large, productive subpopulations keeps declining subpopulations from dwindling to extinction, the phenomenon is called the __________. 
TLS Online TPP Program

#Question id: 4620

#Section 2: Evolution

The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have very different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common ancestor at about the same time. Which of the following is the most likely explanation for these data?