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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: 9573

#Section 1: Ecology

The energy of incident solar radiation reaching the surface of the earth declines toward the poles from its maximum in equatorial regions. One cause of this phenomenon is greater absorption of solar energy by the earth's atmosphere at high latitudes. Why is this?
TLS Online TPP Program

#Question id: 9233

#Section 5: Applied Ecology & Evolution

What is the biggest problem with selecting a site for a reserve?
TLS Online TPP Program

#Question id: 4723

#Section 2: Evolution

The most common cause of the pleiotropic effect of gene is due to
TLS Online TPP Program

#Question id: 10732

#Section 1: Ecology

A community plus the nonliving factors with which it interacts is called a(n)
TLS Online TPP Program

#Question id: 4627

#Section 2: Evolution

Which of the following is not one of Charles Darwin's observations?