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Kaetlynrenae Kaetlynrenae
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6 years ago
Leptin, an appetite-suppressing hormone, is secreted by ________.
 
  a. the brain
 b. fat cells
 c. the intestines
 d. kidneys

Question 2

How do epithelial cells obtain their nutrients?
 
  a. Direct blood supply from an artery.
 b. Nutrients are delivered by macrophages.
 c. Direct blood supply from a vein.
 d. Diffusion from adjacent cells.
 e. Osmosis of nutrients from underlying tissue.
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wrote...
6 years ago
Answer to q. 1

b

Answer to q. 2

d
Kaetlynrenae Author
wrote...
6 years ago
I'm still confused, but thanks for answering correctly
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