This topic contains a solution. Click here to go to the answer

Author Question: The ion that enters myofibrils and stimulates actin and myosin to shorten the cell (contract) is: ... (Read 76 times)

notis

  • Hero Member
  • *****
  • Posts: 596
The ion that enters myofibrils and stimulates actin and myosin to shorten the cell (contract) is:
 
  a. iron.
  b. calcium.
  c. sodium.
  d. potassium.

Question 2

Amenorrhea in female athletes is associated with:
 
  a. poor absorption of iron.
  b. loss of lean body mass.
  c. low bone density.
  d. ketoacidosis.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dyrone

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

B

Answer to Question 2

C



notis

  • Hero Member
  • *****
  • Posts: 596
Both answers were spot on, thank you once again



dyrone

  • Sr. Member
  • ****
  • Posts: 322

 

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

For a complete list of videos, visit our video library