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Author Question: Digestion of foods includes the mechanical actions of: a. chewing to allow some nutrients to be ... (Read 41 times)

anshika

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on: Aug 20, 2018
Digestion of foods includes the mechanical actions of:
 a. chewing to allow some nutrients to be absorbed into the body through the tongue.
  b. peristalsis waves to move the foods down through the digestive tract.
 c. the stomach to gently release foods into the small intestine.
 d. the small intestine to absorb water and create the paste that forms feces.
 e. the large intestine, which releases gas that facilitates fecal transport.

Question 2

What is the role of white blood cells in protecting the body from invading organisms?
 a. Phagocytes release antibodies against the invaders into the bloodstream.
 b. T-cells release a chemical trail for identification of invaders.
 c. B-cells engulf and digest the foreign particles.
 d. Killer T-cells seek out and destroy all foreign particles with the same identity.
  e. Skin cells are a type of white blood cell that provide a physical, protective barrier.


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rekilledagain

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Reply #1 on: Aug 20, 2018
Answer to Question 1

b

Answer to Question 2

d


anshika

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Reply #2 on: Aug 20, 2018
Both answers were spot on, thank you once again


rekilledagain

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Reply #3 on: Aug 20, 2018
Great! Please up vote :D


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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

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