16. painkilling chemicals that occur naturally in the body are known asa. hormones. b. triglycerides. c. endorphins. d. platelets.17. specificity is important to a fitness program because ita. makes the workout more enjoyable. b. allows you to choose the right types of activities to improve a particular fitness element. c. increases the demands you place on your body. d. you to exercise beyond your regular daily abilities.18. olympic athletes have lower resting heart rates becausea. their lungs tend to be naturally larger. b. they have a lot of muscle mass due to weightlifting. c. they exercise regularly, which improves the efficiency of their heart. d. they tend to eat low-fat diets.19. what does a measure of your cardiorespiratory endurance tell a fitness professional? a. your anaerobic fitness, or how well your leg and arm muscles workb. how long you can sustain a weightlifting programc. what type of exercises you've been doingd. your aerobic fitness, or how efficiently your heart is working20. which type of fat may lower the risk of heart disease? a. saturated fatb. trans fatc. unsaturated fatd. cholesterol

Emily naturally blinks whenever her sister pretends she is going to poke her in the eye. her sister, a psychology major, then decides to have a little fun. she pairs the word “psychology” (neutral stimulus) with pretending to poke emily in the eye (unconditioned stimulus), which automatically makes emily blink (unconditioned response). soon, emily blinks as soon as she hears the word “psychology.” when emily blinks when hearing the word “psychology,” even when her sister does not pretend to poke her in the eye, the word “psychology’ is now the

Aplaintiff filed a civil action based on negligence against a defendant in federal district court, alleging that the defendant negligently ran a red light at an intersection and collided with the plaintiff's vehicle, causing the plaintiff's injuries. a week after the close of discovery, the plaintiff filed a motion for summary judgment on the issue of whether the defendant was negligent. with the motion, the plaintiff filed (i) his own sworn affidavit, which stated that the traffic signal was green as he entered the intersection, (ii) an affidavit of a witness who was driving the car behind him, which stated that the witness saw the entire incident and that the plaintiff's traffic signal was green as he approached and entered the intersection; and (iii) an affidavit of another witness, which stated that she saw the entire incident and that the defendant's signal had been red for several seconds before the defendant entered the intersection and was still red when the defendant entered the intersection. the defendant filed a response to the motion, noting that her answer denied negligence and further denied that her traffic signal was red, and argued that the issue of negligence and the issue of whether her traffic signal was red were in dispute, so those issues should be tried to a jury. how should the court rule on the plaintiff's motion?

Explain the correlation between industrialization and urban areas