1 Natural selection of favorable adaptations in organisms often results in A. the inheritance of acquired traits. B. the elimination of favorable traits. C. an increase in genetic mutations. D. the evolution of a species.

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous

What is true of metabolism in its entirety in all organisms?