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The maintenance of homeostasis is of major importance to all organ systems in the body and the overall survival of the individual. Explain how homeostasis is the maintenance of a dynamic range of environmental qualities rather than holding the internal environment at a set point. What would be wrong with a set point (say for body temperature) rather than a working range of temperatures? The endocrine system is closely tied to homeostasis functioning. Give two examples of hormones (including their glands of origin and action) that play major roles in homeostatic processes in the body. What happens if these hormones are disrupted in their actions? Also, look at how we adapt to survival in the outside world. Discuss how maintaining homeostasis gives us greater freedom of activity from dependence upon changes in the external environment. What happens during extremes that force our bodies out of homeostatic bounds? Give specific examples. Why is the maintenance of homeostasis especially important during development of new humans within the bodies of their mothers? What can go wrong if specific homeostatic functions are disrupted?
Two indpendently assorted genes control the color and taste of blueberries. Expression of the dominant allele B results in blue color while expression of the recessive allele b results in white color.
Compare the activation process for T cells to that of B cells. How are they similar, and how are they different?
125 progeny were produced from the following cross: aaBbCcDd x AaBbccDD. Assume that all the genes are unlinked, and that the uppercase letters represent dominant alleles.
Perform a search to find out amino acid sequences of the database similar to the query amino acid sequence supplied. explain a BLAST Search Query Amino Acid Sequence.
A spheroidal bacterium with a diameter of 1 um contains two molecules of a particular protein.
Discuss the molecular mechanisms on how a photoreceptor relays a signal to the bipolar cells describe receptive fields in the retina and how they are relayed to the brain.
Describe the environmental conditions that favored the evolution of gymnosperms. Describe the three additional adaptations to life on land that first appeared in gymnosperms.
Which of the following is an accurate comparison of vertebrate lungs?
What do we call a cluster of chlorophyll molecules found inside the thyroid.
The binomial name of an organism consists of the names of which two classification categories. Smoking, air pollution and altitude all affect the rate of respiration. Explain the effects of each of these on respiration and Why.
Which of the following is most apt to increase body temperature?
What affect might you expect the precipitation of hemoglobin S and the subsequent cell sickling to have on oxygen delivery in an individual with sickle cell disease?
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