chapter 3 & 4

Question 1

Isotopes differ from each other by the…

Answer 1

number of neutrons

Question 2

enzymes

Answer 2

proteins that catalyze the chemical reactions that occur in cell

Question 3

latent heat transfer

Answer 3

As water molecules evaporate and change phase to vapor, it alters the overall kinetic energy of the liquid water molecules left behind. The drop in kinetic energy lowers the temperature.

Question 4

What is the main driving force that causes Earth’s tectonic plates to drift?

Answer 4

Radiative heat from Earth’s interior induces enormous convective currents within the asthenosphere, causing the rigid lithosphere to move.

Question 5

byproduct of photosynthesis

Answer 5

Oxygen

Question 6

The approximate transfer of energy from one trophic level to the next higher trophic layer is

Answer 6

10% is transferred up

Question 7

Species that are found only in specific environments or have restricted localities are said to be

Answer 7

Endemic

Question 8

Within populations of individual species, biodiversity is measured as

Answer 8

Genetic Diversity

Question 9

What is the most abundant natural greenhouse gas?

Answer 9

Water Vapor

Question 10

directional selection

Answer 10

Directional selection favors survival at one extreme end of a set of traits. These fish may be able to survive a range of temperatures, but only the ones who can tolerate the coldest temperatures will eventually survive.

Question 11

exponential growth

Answer 11

accelerated growth over generations