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2024 UGA BIO 1108 TEST 2 STUDY GUIDE EXAM WITH CORRECT ANSWERS
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2024 UGA BIO 1108 TEST 2 STUDY GUIDE EXAM WITH CORRECT ANSWERS
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2024 UGA BIO 1108 TEST 2STUDY GUIDE EXAM WITH
CORRECT ANSWERS
five GHG's - CORRECT ANSWERS-methane, CO2, nitrous oxide, F-gases,
water vapor
Two things that contribute to GWP - CORRECT ANSWERS-- strength of the
gas
- residence time: how long a gas spends in the atmosphere
What is the highest anthropogenic GNG? - CORRECT ANSWERS-CO2
Albedo - CORRECT ANSWERS-The reflectivity of a surface
high albedo - CORRECT ANSWERS-light-colored things reflect more
light/energy
low albedo - CORRECT ANSWERS-Dark-colored surfaces absorb sunlight
(warming)
Macroalgae - CORRECT ANSWERS-convergent evolution of a plant-like
structure (ex: kelp)
Sea otters - CORRECT ANSWERS-- They have the densest fur on the planet
(> 1 million hairs per square inch)
- They need to eat 30% of their body weight everyday to power
metabolism/thermogenesis
- They eat mostly invertebrates (clams, crabs, urchins)
- Heterotrophs (organic C)
- They skip the step of making ATP and it goes straight to heat
first law of thermodynamics - CORRECT ANSWERS-Energy can be transferred
and transformed, but it cannot be created or destroyed.
second law of thermodynamics - CORRECT ANSWERS-Every energy transfer
or transformation increases the entropy (disorder) of the universe.
, Cellular respiration - CORRECT ANSWERS-The process that transforms
energy (food) in organic molecules into ATP and heat. Carbon that we ingest
goes into our body structure/cells, then is transformed as energy (heat), and
then we exhale it out as CO2.
Where does the carbon dioxide we exhale come from? - CORRECT ANSWERS-
It comes from the carbon in the food that we eat.
Chemistry Brief - CORRECT ANSWERS-- Chemical bonds store energy as
'potential energy'
- When they are broken that energy is released and can be captured to help
other chemical rxns run
- Only some energy is assimilated, most is lost as heat or waste
- Only about 10% of energy is used
Thermoregulation - CORRECT ANSWERS-temperature control
How do we thermoregulate? - CORRECT ANSWERS-sweating, shivering, etc.
Physiological - CORRECT ANSWERS-Too hot:
- sweating, increase metabolism, vasodilation
Too cold:
- goosebumps (shivering), vasoconstriction, countercurrent exchange
Morphological - CORRECT ANSWERS-Too hot:
- shedding, panting, elephants with their ears
Too cold:
- blubber/fur, tiny ears/short limbs
Behavorial - CORRECT ANSWERS-Too hot:
- Pigs wallowing in mud, burrowing, swim, find shade, estivation
Too cold:
- cuddling, basking, migrating
Regulator - CORRECT ANSWERS-An animal that keeps their internal
environment pretty constant. (ex: mammals and most birds) (have a greater
diversity)
Conformer - CORRECT ANSWERS-They let their internal environment match
external environments. (ex: fish, reptiles, insects, amphibians, etc)
Endotherms - CORRECT ANSWERS-An animal whose temperature can be
controlled by altering metabolic rate (all birds and mammals)
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