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.


d

Biology & Microbiology

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The neoteny hypothesis is supported by which of the following characteristics? Select all that apply

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In which organ are tissue transplants least likely to be rejected?

a. liver b. lung c. heart d. eye e. kidney

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The _______ nerve carries signals from the retina to the visual cortex of the cerebrum.

Fill in the blank(s) with correct word

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Cancer cells are able to enter blood vessels through what is known as ______.

a. closed junctions b. tight junction c. open junctions d. intermediate junctions

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