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Identify one life history trade off. Now briefly describe an experiment/study to test the hypothesis that the optimal solution to this trade off differs as a function in environmental variation (it is not the same in all habitats and can be predicted) identify what prediction you are testing , and describe how your experiment/study in detail
Name the two scientists who proposed
the best natural system of classification
for plants. Mention any two merits and
any two demerits of their system of
classification.
the best natural system of classification
for plants. Mention any two merits and
any two demerits of their system of
classification.
In addition to providing structural support and protection for the axon of a neuron, what other very important function is served by the presence of a myelin sheath?
Discuss three major changes that took place in
the history of evolution of the modern horse.
the history of evolution of the modern horse.
Biology
identify one disorder of the endocrine system that adults taking human growth hormone supplements could experience. List 4 symptoms of this disorder.
Biology
6. Is any ATP produced directly as electrons move down the electron transport chain? Yes or No
7. What is the name of the process, illustrated by the movement of H+ in the image above, which provides the direct source of energy to synthesize the ATP?
8. Which is the only step that ATP is produced through fermentation? b. Is this more, less or the same amount of ATP a cell would make through cellular respiration?
9. Briefly explain why fermentation is necessary for a cell to be able to continue to produce ATP through glycolysis without requiring continuing extra energy usage within the cell.
7. What is the name of the process, illustrated by the movement of H+ in the image above, which provides the direct source of energy to synthesize the ATP?
8. Which is the only step that ATP is produced through fermentation? b. Is this more, less or the same amount of ATP a cell would make through cellular respiration?
9. Briefly explain why fermentation is necessary for a cell to be able to continue to produce ATP through glycolysis without requiring continuing extra energy usage within the cell.
Biology
1. Using what you know about the requirements for any chemical reaction to take place, briefly
explain the need for the energy investment phase in this catabolic reaction.
2. Where did these carrier molecules come from (what previous phase(s)?
3. When the electrons are released from these carrier molecules, what else is released?
4. Is the release of electrons from these electron carriers an oxidation or reduction reaction?
5. What is formed as a product of the electron transport chain? Did the formation of this molecule involve an oxidation or reduction reaction?
explain the need for the energy investment phase in this catabolic reaction.
2. Where did these carrier molecules come from (what previous phase(s)?
3. When the electrons are released from these carrier molecules, what else is released?
4. Is the release of electrons from these electron carriers an oxidation or reduction reaction?
5. What is formed as a product of the electron transport chain? Did the formation of this molecule involve an oxidation or reduction reaction?
The following is a hypothetical situation. Assume that the presence and color of hair in a breed of dog is controlled by 2 separate genes. The first gene
controls the presence or absence of hair. Individuals who are homozygous recessive have hair, while those with at least one dominant allele are naked/hairless.
The second gene for hair color produces either blond, brown, or black hair, with those that are homozygous for one allele having blond hair, those who are
homozygous for the other allele having black hair, and the heterozygous individuals being brown-haired.
Show the offspring be for the following cross:
A hairless male is crossed with a brown-haired female. The male had a black-haired mother and a hairless father with blond-haired genes
controls the presence or absence of hair. Individuals who are homozygous recessive have hair, while those with at least one dominant allele are naked/hairless.
The second gene for hair color produces either blond, brown, or black hair, with those that are homozygous for one allele having blond hair, those who are
homozygous for the other allele having black hair, and the heterozygous individuals being brown-haired.
Show the offspring be for the following cross:
A hairless male is crossed with a brown-haired female. The male had a black-haired mother and a hairless father with blond-haired genes
a six week pregnancy cannot be very accurately confirmed using an at home pregnancy test kit. why?
3.Predict how the presence of viable but nonculturable cells in food or water systems might impact public health.
