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

Author Question: Which of the following best describes a portal of exit? a. Excretions and secretions b. ... (Read 107 times)

JGIBBSON

  • Hero Member
  • *****
  • Posts: 538
Which of the following best describes a portal of exit?
 a. Excretions and secretions
  b. Immunosuppressants and the elderly
  c. Equipment and water
  d. Respiratory tract and broken skin
  e. Protozoa and fungi

Question 2

Which mineral(s) is/are essential in the formation of healthy bones and teeth?
 a. Fluoride
  b. Phosphorus
  c. Calcium
  d. All of the above



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kardosa007

  • Sr. Member
  • ****
  • Posts: 300
Answer to Question 1

a

Answer to Question 2

d
RATIONALE: Fluoride, calcium, and phosphorus all help to form healthy bones and teeth.



JGIBBSON

  • Hero Member
  • *****
  • Posts: 538

kardosa007

  • Sr. Member
  • ****
  • Posts: 300

 

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

For a complete list of videos, visit our video library