Jaheim is 30 years old with a resting heart rate of 96. He does not exercise often and wants to slowly get back in to shape. What intensity should Jaheim target during his exercise? What should his target heart rate zone be? Why is it unsafe for Jaheim to exercise at his Max Heart rate for an extended period of time?

The embryonic stage is the most critical stage of fetal development. true false

Match each of the life stages below to the sentence that best describes it. an answer may be used more than once. young people establish an identity separate from that of their parents and turn to peers for support and acceptance; rejection by peers poses a major threat to adjustment. some common threats to adjustment include children leaving home, physical changes that require one to slow down, and failure to meet earlier goals. gross motor, fine motor, and language skills develop rapidly; changes in family schedule or child-care professional can create anxiety. those who are financially secure and reasonably healthy may enjoy retirement, travel, and socializing; others may find the loss of friends, a job, and financial instability frightening. children who have developed their physical, intellectual, and social skills are able to adjust to new situations, but children who lack basic skills can be threatened by school pressures and conflicts with others. new experiences and responsibilities include beginning college or a job, establishing a home, marrying, and starting a family. separation anxiety can occur when a child enters a new day care facility or school. the child may cry, claim to be sick, or beg to go home. a. early childhood b. middle childhood c. adolescence d. young adulthood e. middle adulthood f. senescence

Spherocytosis is an inherited blood disease in which the erythrocytes (red blood cells) are spherical instead of biconcave. this condition is inherited in a dominant fashion, with sph- dominant to sph+. in people with spherocytosis, the spleen "reads" the spherical red blood cells as defective, and it removes them from the bloodstream, leading to anemia. the spleen in different people removes the spherical erythrocytes with different efficiencies. some people with spherical erythrocytes suffer severe anemia and some mild anemia, yet others have spleens that function so poorly there are no symptoms of anemia at all. when 2400 people with the genotype sph- sph+ were examined, it was found that 2250 had anemia of varying severity, but 150 had no symptoms. does this description of people with spherocytosis represent incomplete penetrance, variable expressivity, or both? explain your answer. (3 points)