ISB 202: EVOLUTION, ECOSYSTEMS, AND HUMAN
IMPACT – FINAL EXAM
Photosynthesis - answers✔✔Which biological process is key in determining where the various
biomes occur on Earth?
not enough precipitation - answers✔✔what factor limits grasslands from having more trees?
Second Law of Thermodynamics - answers✔✔Which principle explains the reduction in the
amount of energy transferred from one trophic level to the next one?
carbon dioxide & water - answers✔✔In addition to sunlight, what are the inputs needed for
photosynthesis?
carbon dioxide in the air that enters through leaf stomata (pores) - answers✔✔The majority of
a plant's biomass comes from:
It can exit the plant as carbon dioxide.
It can become a structural part of the plant.
, It can be consumed by an insect feeding on the plant and become part of the insect's body. -
answers✔✔What are the different pathways that carbon can take once it is inside a plant?
It exits a plant as carbon dioxide. - answers✔✔Which of the following describes what happens
to a carbon atom during cellular respiration?
carbon dioxide, water - answers✔✔Besides energy, what are the outputs of cellular respiration?
Exhaled in the form of CO2 - answers✔✔When someone wants to lose weight, they eat less and
exercise more. Where does the majority of the biomass actually go? (How is it mainly lost?)
The amount of water available in the soil - answers✔✔To combat rising levels of atmospheric
CO2, people have proposed planting as many trees as possible in order to sequester CO2. What
factor, however, limit the biomass of trees that could be grown? (Hint: think about differences in
biomes and where they are found.)
Through photosynthesis by tiny plants floating at the ocean's surface (i.e., phytoplankton).
Through respiration by tiny plants floating at the ocean's surface (i.e., phytoplankton).
Through gas exchange between the atmosphere and ocean. - answers✔✔How can carbon enter
the ocean carbon cycle? (choose all that apply)
It increases the concentration of free hydrogen ions, thereby causing the ocean to become
more acidic (decreased pH) - answers✔✔How does increased levels of CO2 released into the
atmosphere affect the chemistry in the ocean?
Source - answers✔✔In the winter, what kind of reservoir for carbon would a deciduous
temperate forest be considered?
IMPACT – FINAL EXAM
Photosynthesis - answers✔✔Which biological process is key in determining where the various
biomes occur on Earth?
not enough precipitation - answers✔✔what factor limits grasslands from having more trees?
Second Law of Thermodynamics - answers✔✔Which principle explains the reduction in the
amount of energy transferred from one trophic level to the next one?
carbon dioxide & water - answers✔✔In addition to sunlight, what are the inputs needed for
photosynthesis?
carbon dioxide in the air that enters through leaf stomata (pores) - answers✔✔The majority of
a plant's biomass comes from:
It can exit the plant as carbon dioxide.
It can become a structural part of the plant.
, It can be consumed by an insect feeding on the plant and become part of the insect's body. -
answers✔✔What are the different pathways that carbon can take once it is inside a plant?
It exits a plant as carbon dioxide. - answers✔✔Which of the following describes what happens
to a carbon atom during cellular respiration?
carbon dioxide, water - answers✔✔Besides energy, what are the outputs of cellular respiration?
Exhaled in the form of CO2 - answers✔✔When someone wants to lose weight, they eat less and
exercise more. Where does the majority of the biomass actually go? (How is it mainly lost?)
The amount of water available in the soil - answers✔✔To combat rising levels of atmospheric
CO2, people have proposed planting as many trees as possible in order to sequester CO2. What
factor, however, limit the biomass of trees that could be grown? (Hint: think about differences in
biomes and where they are found.)
Through photosynthesis by tiny plants floating at the ocean's surface (i.e., phytoplankton).
Through respiration by tiny plants floating at the ocean's surface (i.e., phytoplankton).
Through gas exchange between the atmosphere and ocean. - answers✔✔How can carbon enter
the ocean carbon cycle? (choose all that apply)
It increases the concentration of free hydrogen ions, thereby causing the ocean to become
more acidic (decreased pH) - answers✔✔How does increased levels of CO2 released into the
atmosphere affect the chemistry in the ocean?
Source - answers✔✔In the winter, what kind of reservoir for carbon would a deciduous
temperate forest be considered?
