Practice Questions

TLS Online TPP Program

#Question id: 13018

Generalized global air circulation and precipitation patterns are caused by

#Unit 10. Ecological Principles

Rising, warm, moist air masses cool and release precipitation as they rise and then at high altitude, cool and sink back to the surface as dry air masses after moving north or south of the tropics.
Air masses that are dried and heated over continental areas that rise, cool aloft, and descend over oceanic areas followed by a return flow of moist air from ocean to land delivering high amounts of precipitation to coastal areas.
Polar, cool, moist high pressure air masses from the poles that move along the surface, releasing precipitation along the way to the equator where they are heated and dried.
The revolution of the Earth around the sun.

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TLS Online TPP Program

#Question id: 3268

#Unit 11. Evolution and Behavior

A population of insects is in Hardy-Weinberg equilibrium for a gene with alleles A = orange and a = yellow eyes. There are 91% orange and 9% yellow individuals in the population. If the fitness of the yellow phenotype suddenly drops to zero, what will be the allele frequency in the next generation?

TLS Online TPP Program

#Question id: 20982

#Unit 12. Applied Biology

Which is considered as the most recalcitrant of the BTEX compounds, and of greatest regulatory concern because of its associated health impacts?

TLS Online TPP Program

#Question id: 17803

#Unit 9. Diversity of Life Forms

Mitotic activity by the apical meristem of a root makes which of the following more possible?

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?