Unit A - Energy and the Biosphere

Question 1

Closed system

Answer 1

exchanges energy but not matter
(energy flows, matter cycles)

Question 2

Albedo

Answer 2

reflectivity (light colors have high albedo)

Question 3

First Law of Thermodynamics

Answer 3

matter can never be created or destroyed

Question 4

Pyramid of Numbers

Answer 4

of organisms (can be inverted)

of organism (can be inverted)

Question 5

Pyramid of Biomass

Answer 5

mass of all organisms (can be inverted)

Question 6

Pyramid of Energy

Answer 6

amount of energy (never inverted)

Question 7

Pyramid of Productivity

Answer 7

measures the flow of energy (never inverted)

Question 8

Dynamic equilibrium

Answer 8

small changes balance each other out

Question 9

Nutrient cycling

Answer 9

water is most dense at 4oC. The rising and falling of water cycles nutrients from the floor up to the surface

Question 10

Cohesion

Answer 10

attraction to each other

Question 11

Adhesion

Answer 11

attraction to other substances

Question 12

Productivity

Answer 12

measuring new biomass

Question 13

Phylogeny

Answer 13

the study of relationships among different groups of organism and their evolutionary development