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BIO 213 EXAM 4 QUESTIONS AND VERIFIED ANSWERS

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BIO 213 EXAM 4 QUESTIONS AND VERIFIED ANSWERS

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Warmer Temperatures


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This causes the sea level to rise




NPP = GPP - R
Where R is energy used in cellular respiration


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How does energy flow through ecosystems?




Warm water, Less dense

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Nutrient-rich water is brought to the surface by currents




1. Fertilizers
2. Nitric oxide from burning fossil fuels
3. The cultivation of certain crops


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What human-fixed nitrogens have a major effect on the nitrogen cycle?




Photopigments


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Absorb a fraction of light wavelengths.




A 0 interaction


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A relationship between two species that has no effect on the members of
either species

,A disadvantage could be that they are expensive in terms of the energy and
resources that must be devotes to producing and maintaining them.


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What is a disadvantage of displaying a constitutive defense?




Global Consequences


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Changes in NP combine with other factors, such as precipitation patterns
and ocean acidification, to alter food web dynamics- and thus ecosystem
function.




Competition


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Occurs when individuals use the same resources - resulting in lower fitness
for both (-/-). There is a strong natural selection on both species to avoid it.
The outcome is an evolutionary change in traits that reduces the amount of
niche overlap and the amount of competition.




Changes in Water Density


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, The drop in marine productivity is likely due to ____.




Mutualism


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Occurs when two species interact in a way that confers fitness benefits to
both (+/+).
Examples can be found between:
1. Flower and their pollinator
2. Mycorrhizal fungi
3. Nitrogen fixation
4. Rancher ants and fungi
5. Farmer ants and fungi
6. Crematogaster ants and acacia trees
7. Cleaner shrimp and fish




1. Healthy liver cell has an HLA-B53 protein on its membrane.
2. HLA-B53 protein displays cp26 protein from Plasmodium, indicating that the liver
cell is infected.
3. Cytotoxic T cell recognizes HLA-B53 and cp26 complex.
4. Cytotoxic T cell kills liver cell before more Plasmodium cells are produced.


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What is the human immune defense against Plasmodium process?




Succession


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