Atmospheric pressure is less at higher altitudes than at lower
ones. Which of these is caused
by lower pressure at higher
altitudes?
A Car tires need to be inflated more
than at sea level.
B A pendulum will swing faster
than it will at sea level.
C A 20 mph wind will be stronger
than it will be at sea level.
D Cooking beans in an open pot
will take longer than it will at sea
level.

Which of the following characteristics are true of enzymes? check all that apply. a.)the structure of an enzyme can change if conditions change. b.)a single enzyme can normally catalyze a wide variety of reactions under many conditions. c.)enzymes are found only in nonliving systems. d.)enzymes allow living things to regulate body conditions through feedback mechanisms. e.)enzymes bind to specific substrates in specific ways. f.)enzymes increase the rate of reaction. g.)when shown in energy-reaction diagrams, enzymes represent the higher activation energy.