What type of tone should be used when writing college essays?

Which environments have greater variation in temperature?

Which describes water movement in terrestrial plants?

Which are factors that contribute to water potential?

What is the main source of internal body water for kangaroo rats?

A population of sparrows is relocated from its native location at 50 meters above sea level to a new location 1500 meters above sea level. After a few weeks, the sparrows have acclimated to their new, lower oxygen environment. Would you expect the babies born after this time to go through their own acclimation period?

For each of the following heat regulation strategies, indicate the ecosystem or biome where the plants would be found 1. reduce conduction by minimizing ground contact [1] 2. compact, cushion-shaped growth form close to the ground [2] 3. darker colored leaves and leaves oriented perpendicular to the sunlight [3] 4. open growth form and small leaves [4]    

It is a very hot day, and you jump into a lake to cool off. What is the method of heat exchange?

Which would you expect to find near a deep sea hydrothermal vent? Select all correct answers.

What significant development occurred during the Middle Ages relevant to pharmacology?