EXAM 2-FINAL REVIEW FOR BIOLOGY
109- QUESTIONS AND ANSWERS
The large total amount of primary productivity in the ocean is likely due to -
ANSWER-The vast size of the ocean
Humans have altered biogeochemical (nutrient) cycles by - ANSWER-Combusting
fossil fuels that add CO2 to the biosphere, fixing nitrogen for use in fertilizer, altering
land use patterns.
If Gross Primary Productivity in an area is 1,000 g/m2 what would Net Primary
Productivity be? - ANSWER-500 g/m2
Which terrestrial biome has the highest amount of primary productivity on a per-unit
basis? - ANSWER-Tropical rainforest
If 100,000 units of energy is contained in the primary producers (plants) about how
much energy would be expected to find in primary consumers? - ANSWER-10,000
units
The number of different alleles in a population - ANSWER-Genetic diversity
An advantage of the declining population approach to conservation is that -
ANSWER-the population may not be so small as to be in critical danger.
Small populations may be doomed to extinction because - ANSWER-Inbreeding
effects lower survival and reproduction.
Biodiversity hotspots - ANSWER-have many endemic (unique) species, have many
threatened or endangered species, are areas impacted by humans, and have high
levels of biodiversity.
Of the species that we have enough information to determine their conservation
status approximately how many are Threatened or Endangered? - ANSWER-40%
Biological augmentation - ANSWER-Introduces species into an area to speed
ecosystem restoration
Introduced species cause conservation problems because - ANSWER-The native
species have not evolved with the introduced species and have no defense.
Which of the following is (are) true about the Greenhouse Effect? - ANSWER-Human
produced CO2 is increasing the amount of heat reradiated to the Earth's surface and
it is necessary for life to exist on Eart.
Hadley cells are formed in part by - ANSWER-The sun heating the air at the equator.
109- QUESTIONS AND ANSWERS
The large total amount of primary productivity in the ocean is likely due to -
ANSWER-The vast size of the ocean
Humans have altered biogeochemical (nutrient) cycles by - ANSWER-Combusting
fossil fuels that add CO2 to the biosphere, fixing nitrogen for use in fertilizer, altering
land use patterns.
If Gross Primary Productivity in an area is 1,000 g/m2 what would Net Primary
Productivity be? - ANSWER-500 g/m2
Which terrestrial biome has the highest amount of primary productivity on a per-unit
basis? - ANSWER-Tropical rainforest
If 100,000 units of energy is contained in the primary producers (plants) about how
much energy would be expected to find in primary consumers? - ANSWER-10,000
units
The number of different alleles in a population - ANSWER-Genetic diversity
An advantage of the declining population approach to conservation is that -
ANSWER-the population may not be so small as to be in critical danger.
Small populations may be doomed to extinction because - ANSWER-Inbreeding
effects lower survival and reproduction.
Biodiversity hotspots - ANSWER-have many endemic (unique) species, have many
threatened or endangered species, are areas impacted by humans, and have high
levels of biodiversity.
Of the species that we have enough information to determine their conservation
status approximately how many are Threatened or Endangered? - ANSWER-40%
Biological augmentation - ANSWER-Introduces species into an area to speed
ecosystem restoration
Introduced species cause conservation problems because - ANSWER-The native
species have not evolved with the introduced species and have no defense.
Which of the following is (are) true about the Greenhouse Effect? - ANSWER-Human
produced CO2 is increasing the amount of heat reradiated to the Earth's surface and
it is necessary for life to exist on Eart.
Hadley cells are formed in part by - ANSWER-The sun heating the air at the equator.
