Increasing cardiorespiratory fitness levels is difficult for experienced athletes because a. they are not motivated to increase their levels of cardiorespiratory fitness
b. they cannot commit the training time to increase their cardiorespiratory fitness
c. they have already achieved high levels of cardiorespiratory fitness
d. none of the above

When 17-year-old dominik visits with his primary care physician for the first time, he is not sure what information he needs to provide. to ensure adequate care, which details should he share with his doctor? check all that apply. his brother and sister are both adopted. his grandfather smoked cigarettes until he was 25 years old. his mother was diagnosed with cancer. he is having unprotected sex with his girlfriend. he has been excessively tired for the past two months.

Diseases may arise when proteins fail to fold correctly in their last stages of processing and/or are directed towards the lysosome rather than towards the cell membrane. cystic fibrosis is an example of this type of disease. in cystic fibrosis, a functional ion channel is sent to the lysosome for destruction rather than being sent to the plasma membrane. given this observation, the cellular component that is most likely the cause of the disease is the

Which of these is a sexual stereotype? a) on average, males are taller than females. b) people over the age of 60 are not interested in sex. c) male hormone levels differ from those of females. d) there are more male representatives than female representatives in congress.