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Question: Assume your text provides an interesting explanation for the "dormitory effect", in which women living (or sometimes working) together tend to synchronize their menstrual cycles. Gonadotropin releasing hormone is not the only hypothalamic hormone, of course, so we may wonder what other parts of the hypothalamo-hypophyseal portal system is responsive to a "living or working in a group" effect. Perhaps we can smell when others are "stressed" and it causes us to change our levels of cortisol by a mechanism similar to the "dormitory effect". Explain how that pathway might work step-by-step, starting with the nose and ending with the adrenal cortex, and then describe a simple experiment to test the idea.
Question: The drug Nifedipine is mentioned in this chapter as a membrane calcium ion channel blocker, and it is used to relax the walls of blood vessels (effectively lowering high blood pressure). Explain step-by-step how blocking membrane calcium channels could have this effect, especially considering that smooth muscle has no troponin. Second, the drug is also used to slow down labor during childbirth, presumably by its action on the uterus. Would that work similarly to Nifedipine's effect on blood vessel walls?
Question: Sometimes a person having heart problems will have an artificial pacemaker implanted, as described in your text. The procedure often leads to them feeling much better - but why? Why exactly were they feeling much worse before the operation, and why did the pacemaker help?
How is a Scathard plot generated, and what measure of the inter-molecular interaction is used to find this?What is the proteasome.
If a maize plant is heterozygous for the alleles for pigmy and crinkly-leaf (both recessive to normal size of plant (S) and normal leaf (L) is self pollinated and 208 seeds are subsequently collected and germinated, how various would you expect to sh..
In what ways are species more "fluid" than even 20th century biologists might have believed? To what extent was Darwin's explanation of species as "convenient constructions" accurate? Are species real.
Glycogen synthesis and degradation in liver and muscle is very similar. Which of following enzymes is not used in both muscle and liver for these metabolic pathways?
Use corn and cottonseed meal to formulate one hundred pounds of a supplement that contains 17 percent CP and .91 Mcal NEL/ lb. Of course,
why the enzyme is an "organic protein". A friend of yours has just received a new dietary supplement purchased online.
Explain why there are no male offspring with the allele combinations
What attributes must these alleles possess for them still to be present. How must the interests of competing groups be balanced.
Utilize the words mesoglea, epidermis, gastrodermis, polyp, medusa, and gastrovascular cavity to describe the differences between the two forms of phylum cnidaria.
Why can prakaryotes quickly re infect a patient if they are not wiped out? How may this result in the evolution of drug resistant pathogens.
All three major types of RNA are processed before they are mature. They are derived from precursor RNA molecules that are considerably longer than the final RNA product.
DNA sequences are used quite often to evolutionary relationships between species. Explain why is the DNA sequence of one gene a less accurate indicator of the evolutionary.
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