Practice Questions

TLS Online TPP Program

#Question id: 9217

Which of the following conditions is the most likely indicator of a population in an extinction vortex?

#Unit 9. Diversity of Life Forms

The species in question is found only in small, stable pockets of its former range.
The effective population size of the species falls below 1,000.
Genetic measurements indicate a loss of genetic variation over time.
The population is permanently small.

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TLS Online TPP Program

#Question id: 24113

#General Aptitude

Charles, aware of his susceptibility to gum disease, is diligent about flossing.

TLS Online TPP Program

#Question id: 17199

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Question id: 3018

#Unit 2. Cellular Organization

In the growth curve of a bacteria population, the bacteria are rapidly increasing in number in the

TLS Online TPP Program

#Question id: 12601

#Unit 10. Ecological Principles

The total biomass of photosynthetic autotrophs present in an ecosystem is known as

TLS Online TPP Program

#Question id: 2070

#Unit 2. Cellular Organization

The sodium-potassium pump is called an electrogenic pump because it: