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Question: Justify the hypothesis of early microorganisms were chemolithotroph and why phototrophic organisms that came after had pigments that absorbed maximally at UV and IR radiation
Question: Although physiologically distinct, chemolithotrophs and chemoorganotrophs share a number of features with respect to the production of ATP. Discuss these common features along with reasons why the growth yield (grams of cells per mole of substrate) of a chemoorganotroph respiring glucose is so much higher than for a chemolithotroph respiring sulfur.
Frogs are extremely sensitive to acid rain. How might this information be used to investigate your observation about the trees dying in the forest.
How several 25 ml vials can they fill. An Eon of time is defined as 1 billion years (1x10^9 years). How long is this in seconds? Assume one year is equal to 365.25 days.
How many sectors are reported for any partitions on physical device? How many sectors are on whole physical hard drive?
If a drug company developed a new drug which prevents something like osteoporosis, and has no side effects and has been used for 10+ years
Acetylcholine acts at the G-protein-linked receptor on heart muscle to make the heart beat more slowly by the effect of the G protein on a K+ channel. Which one or more of next would enhance this effect of acetylcholine.
What is the most common agent of UTIs . The pool regularly becomes infested with disease-causing viruses and bacteria. Which species are more possible to thrive in the changing environment.
For an amino acid such as alanine, the major species in solution at pH 7 is the zwitterionic form. Suppose a pKa value of 8 for the amino group and a pKa value of three for the carboxylic acid.
Explain this dosage strategy in terms of the negative feedback control of cortisol secretion and receptor function in hormonal pathways.
The autosomal dominant allele M L specifies a tailless phenotype in cats. This allele is lethal in the homozygous state. A tailless female cat is mated to a tailless male cat.
Estimate how would you explain the change in variation of the virus population after 1000 generations? There is more variation after 1000 generations.
Explain the main types of extracellular signaling.
Describe the major points of the Sternberg, Spearman, and Gardner models of intelligence. Discuss specific similarities and differences from one model to another. Discuss which model appears to be the most comprehensive model of intellectual function..
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