Dr. morris predicts that if a new drug is given to rabbits, then the drug will increase their metabolic rates and cause them to lose weight. he designs an experiment to test his prediction. dr. morris separates six rabbits into two equal groups and weighs them all individually. he gives the experimental group of rabbits the drug but does not give it to the control group. he keeps everything else about the rabbits' living environment the same, including the amount of food and water provided. after three weeks, dr. morris reweighs the rabbits to see if they have lost weight. his results are shown in the table below.

Mike was adopted, and his biological family history is unknown. although he is healthy, he would like some understanding of his genetic makeup, including potential health risks and genes that he could pass on to his children. mike has heard about commercial laboratories that can compare segments of your dna to those of people with common hereditary diseases in order to give you some idea of how susceptible you are to the diseases. the results of these types of tests are highly inconclusive. if mike's dna showed that he shares similarities in a segment of dna with people who have a given disease, his chances of developing that disease or passing it on to his children may be slightly elevated, but they are not 100 percent. these tests can cost more than $2,500 and are not covered by many insurance companies. do you think that mike should undergo the genetic tests? explain your answer. what are the potential pros and cons of having such tests done? describe how the availability of these genetic tests might affect the frequency of genetic diseases in individuals and populations.

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

Which organ controls breathing? lungs alveoli heart diaphragm