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TLS Online TPP Program

#Question id: 11338

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

#10. Ecological Principles
  1. tropical communities are younger.
  2. tropical regions generally have more available water and higher levels of solar radiation.
  3. higher temperatures cause more rapid speciation.
  4. diversity increases as evapotranspiration decreases 
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TLS Online TPP Program

#Question id: 9216

#9. Diversity of Life Forms

Which of the following criteria have to be met for a species to qualify as invasive?
TLS Online TPP Program

#Question id: 4569

#11. Evolution and Behavior

Which of the following must exist in a population before natural selection can act upon that population?
TLS Online TPP Program

#Question id: 15775

#5. Developmental Biology

When a multipotent stem cell divides asymmetrically, its maturing daughter cell often goes through a transition stage, called as
A. Progenitor cell .
B. Transit-amplifying cell.
C. Adult stem cell
D. Totipotent precursor cell
TLS Online TPP Program

#Question id: 18390

#12. Applied Biology

Which bacterium is mainly found at quite high ionizing radiation zones or areas?
TLS Online TPP Program

#Question id: 13210

#6. System Physiology – Plant

In Cohesion–Tension Theory, the pressure gradients needed to move water through the xylem could result from