Author Question: Seventy-year-old Edna had never exercised much. After her doctor explained about muscle mass ... (Read 124 times)

geodog55

  • Hero Member
  • *****
  • Posts: 530
Seventy-year-old Edna had never exercised much. After her doctor explained about muscle mass decline, she decided to enroll in a senior aerobics class. A year later, some of her muscle weakness appeared to have reversed itself, demonstrating
 
  A) compensation.
  B) optimization.
  C) plasticity.
  D) selection.

Question 2

Now that she's reached old age, Veronica's heart pumps blood slower when she swims laps in the pool than it did when she was younger. At the same time, however, it pumps a larger amount of blood with each heartbeat. Veronica's heart is demonstrating which of the following?
 
  A) Compensation
  B) Plasticity
  C) Optimization
  D) Selection



T4T

  • Sr. Member
  • ****
  • Posts: 348
Answer to Question 1

C

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

For a complete list of videos, visit our video library