By Judith Goodenough
With a brand new open, student-friendly format and extra media integration, the Fourth version of Biology of people: ideas, purposes, and matters maintains to customize the learn of human biology. Its conversational writing sort, lovely paintings, plentiful functions, and studying instruments enhance your critical-thinking abilities. The authors supply a conceptual framework that will help you know how bodies paintings, and to house matters appropriate to human well-being in today’s global. You’ll achieve an appreciation for the intricacy of the human physique and where of people within the ecosphere.
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Additional info for Biology of Humans: Concepts, Applications, and Issues, Fourth Edition
For example, many cultures have long known that tea made from willow bark relieves pain and reduces fever. Scientists learned that willow bark contains salicylic acid. They isolated the compound and developed it into the drug we know today as aspirin. Similarly, digitalis, a heart medication, was discovered after a patient with an untreatable heart condition was seen to beneﬁt from an herbal drink provided as a folk remedy. The potion contained purple foxglove, which, like willow bark, is frequently mentioned in ancient texts as a healing herb.
Measurements were made every 3 weeks throughout the study. Volunteers were randomly chosen for each group studied. Three experimental groups of volunteers consumed 8 CHAPTER 1 Humans in the World of Biology Hypothesis: Eating oatmeal lowers blood cholesterol levels Prediction: If oatmeal consumption lowers blood cholesterol levels, then a person’s cholesterol level will be lowered by eating a bowl of oatmeal a day for 6 weeks. 6 The design of an experiment to test the prediction that oatmeal lowers blood cholesterol levels one, two, or three 1 oz packets of oatmeal per day.
Phase III How does the new drug compare with other available treatments? 10 CHAPTER 1 Humans in the World of Biology what would you do? The job of the FDA is to ensure the safety and effectiveness of new drugs and treatments. It must balance the patients’ desires for access to new treatments against the government’s desire to protect patients from treatments that may be unsafe or ineffective. The drug approval process is painstakingly slow, usually taking more than 8 years. Do you think that the FDA should bypass certain steps of the approval process to make new drugs available to critically ill patients who may not be able to wait?