Author Question: Amino acids that are not synthesized by the human body and must be obtained in food sources are ... (Read 46 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?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

For a complete list of videos, visit our video library