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TLS Online TPP Program

#Question id: 11282

Which of the following ecosystems would likely have the largest net primary productivity per hectare and why?

#Unit 10. Ecological Principles
  1. open ocean, because of the total biomass of photosynthetic autotrophs
  2. grassland, because of rapid growth, the small standing crop biomass that results from consumption by herbivores, and rapid decomposition
  3. tundra, because of the incredibly rapid period of growth during the summer season
  4. deep ocean, due to the high activity of chemoautotrophs at deep sea vents
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TLS Online TPP Program

#Question id: 8704

#Unit 9. Diversity of Life Forms

To apply the principle of maximum parsimony to construction of a phylogenetic tree, ________.
TLS Online TPP Program

#Question id: 4592

#Unit 11. Evolution and Behavior

Which of the following statements describe the effect of evolution on a population?
TLS Online TPP Program

#Question id: 5017

#Unit 11. Evolution and Behavior

Arrange these events from earliest to most recent.

1.  emission of lava in what is now Siberia at time of Permian extinctions

2.  emission of lava that solidified at the same time as iron-bearing terrestrial rocks began to rust

3.  emission of lava that solidified at the same time as rusted iron precipitated from seawater

4.  emission of lava in what is now India at time of Cretaceous extinctions
TLS Online TPP Program

#Question id: 19707

#Unit 13. Methods in Biology

Currents caused by opening of which of the following channels contribute to the repolarization phase of the action potential ofventricular muscle fibers?
TLS Online TPP Program

#Question id: 2081

#Unit 2. Cellular Organization

The plasma membrane around a eukaryotic cell is composed of: