TLS Online TPP Program

#Question id: 2150


Which of the following increase(s) membrane fluidity?

#SCPH28 | Zoology
  1. phospholipids with long, saturated fatty acyl chains

  2. phospholipids with short, unsaturated fatty acyl chains

  3. lower temperatures

  4. cholesterol at the usual concentrations found in biomembranes

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TLS Online TPP Program

#Question id: 11330

#SCPH06 I Botany

Bio geographers have noted that the tropics have more terrestrial species than temperate regions. Which of the following is NOT a plausible explanation for this pattern?

TLS Online TPP Program

#Question id: 11330

#SCPH28 | Zoology

Bio geographers have noted that the tropics have more terrestrial species than temperate regions. Which of the following is NOT a plausible explanation for this pattern?

TLS Online TPP Program

#Question id: 11331

#SCPH06 I Botany

Based on the intermediate disturbance hypothesis, a community’s species diversity is increased by

TLS Online TPP Program

#Question id: 11331

#SCPH28 | Zoology

Based on the intermediate disturbance hypothesis, a community’s species diversity is increased by

TLS Online TPP Program

#Question id: 11332

#SCPH06 I Botany

The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that

 A) tropical communities are older.

 B) tropical regions generally have more available water and higher levels of solar radiation.

 C) higher temperatures cause more rapid speciation.

 D) diversity increases as evapotranspiration decreases.

TLS Online TPP Program

#Question id: 11332

#SCPH28 | Zoology

The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that

 A) tropical communities are older.

 B) tropical regions generally have more available water and higher levels of solar radiation.

 C) higher temperatures cause more rapid speciation.

 D) diversity increases as evapotranspiration decreases.