Practice Questions

TLS Online TPP Program

#Question id: 9150

For mountain ranges that are subjected to prevailing winds, why is the climate drier on the leeward (downwind) side?

#9. Diversity of Life Forms

Deserts create dry conditions on the leeward side of mountain ranges.
The sun illuminates the leeward side of mountain ranges at a more direct angle, converting to heat energy, which evaporates most of the water present.
Pushed by the prevailing winds on the windward side, air is forced to rise, cool, condense, and drop its precipitation, leaving drier air to descend the leeward side.
Air masses pushed by the prevailing winds are stopped by mountain ranges and the moisture is used up in the stagnant air masses on the leeward side.

More Questions

#Question id: 16121

#7. System Physiology – Animal

Match the following mechanisms (Column I) with their correct example (Column II).

Column I	Column II
A. Heat-generating and heat-retaining mechanisms	i. increased metabolic rate (thyroid hormones, sympathetic nervous system)
B. Heat-dissipating mechanisms	ii. vasodilation of blood vessels of the skin (decreased sympathetic tone)
	iii. increased activity of sympathetic cholinergic fibers to sweat glands.
	iv. shivering
	v. vasoconstriction of blood vessels of the skin (increased sympathetic tone)

#Question id: 306

#1. Molecules and their Interaction Relevant to Biology

The force responsible for dissolution of ionic compound in water is_________

#Question id: 342

#1. Molecules and their Interaction Relevant to Biology

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.

#Question id: 3448

#11. Evolution and Behavior

Which scientist devised a rule that predicts when natural selection should favor altruism?

#Question id: 10358

#6. System Physiology – Plant

Which of the following essential micronutrients is associated with nitrate reductase enzyme found in higher plants?