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1) what is a hypothesis? what are the steps involved in following the scientific method?
how does one distinguish the dependent variable from the independent variable in an
experiment? how are each of these represented on a graph?
2) kathy and sally have been best friends since high school. each is 5'5" tall and weighs
about 160 lbs., which is considered to be overweight. kathy's blood pressure is 125/82
and her blood analysis shows healthy levels of glucose and lipids. sally's blood pressure
is 135/87 and her blood analysis shows elevated glucose and triglycerides. given that
they are the same height and weight, would you expect their blood analyses to be more
similar? explain. would you expect their body shapes to be similar? explain. which one
is more likely to be diagnosed with metabolic syndrome? explain.
3) one hypothalamic hormone triggers a pituitary hormone to cause release of an
adrenal hormone. fill in the names of the hormones below. if a tumor in the adrenal
cortex resulted in hypercortisolism, how would this affect the relative levels of hormone
produced from each source? what type of reflex pathway is involved?
4) diffusion rate is indirectly proportional to ________.
5) you are a technician in a neuroanatomy lab, and it's your first day of training to learn
a technique of labeling neurons. your boss tells you that you will fill individual motor
neurons, by injecting horseradish peroxidase (hrp) conjugated to tetanus toxin, into a
skeletal muscle. how could this possibly label the neurons?
