« previous next »

Author Question: Trace elements are those required by an organism in only minute quantities. Whic (Read 1647 times)

Hawke

  • Hero Member
  • *****
  • Posts: 679
on: May 25, 2013
Trace elements are those required by an organism in only minute quantities. Which of the following is a trace element that is required by humans and other vertebrates, but not by other organisms such as bacteria or plants?
A) nitrogen
B) calcium
C) iodine
D) sodium
E) phosphorus


Melanie

  • Full Member
  • ***
  • Posts: 204
Reply #1 on: May 28, 2013


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

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.

When the United States gets stuck over a controversial issue—usually something a divided Congress ca When the United States gets stuck over a controversial issue—usually something a divided Congress ca
Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s
Syn 3.0 Organism Syn 3.0 Organism
Important Trace Elements in the Body Important Trace Elements in the Body
Important Trace Elements in the Body Important Trace Elements in the Body
ELEMENTS OF ARCHITECTURE: The Roman Arch "القوس الروماني" ELEMENTS OF ARCHITECTURE: The Roman Arch "القوس الروماني"
Video: Regulation of GFR: three methods, autoregulation & autoregulation via myogenic mechanism

For a complete list of videos, visit our video library