You ask your roommate to water a sickly plant while you are on vacation. there is an 80% chance that the plant will die without water. there is a 10% chance that it will die with water. your roommate only has an 85% of remembering to water the plant. define the following events: a = plant alive w = roommate waters plant

According to the theory of punctuated equilibrium, at what rate does speciation occur? species change depending on the rate of natural selection. after periods of stasis, new species evolve relatively rapidly. species change slowly and eventually form new species. some species change quickly and others change slowly to balance the overall rate.

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature above 37 degrees celsius (98.6 degrees f)? describe what might happen if the temperature decreased by 10 degrees celsius.

What are charcteristics of lithosphere?