Author Question: Amino acids that are not synthesized by the human body and must be obtained in food sources are ... (Read 64 times)

V@ndy87

  • Hero Member
  • *****
  • Posts: 571
Amino acids that are not synthesized by the human body and must be obtained in food sources are called
 
  A) nucleic acids.
  B) carboxylic acids.
  C) essential amino acids.
  D) vitamins.

Question 2

Alpha particles can be stopped by a
 
  A) sheet of paper.
  B) block of wood.
  C) thin sheet of aluminum.
  D) all of these



samiel-sayed

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

C

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

For a complete list of videos, visit our video library