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loryatchy loryatchy
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7 years ago
What serves as the cardiac pacemaker?
 
  a. sinoatrial node
  b. atrioventricular node
  c. gap junction
  d. the left ventricle
  e. conducting fiber

Question 2

A sorus is:
 
  a. a collection of rust-colored disease spots on a fern
  b. the fern gametophyte
  c. an egg-producing structure
  d. a spore-forming cone shaped structure with modified leaves
  e. a collection of spore-producing structures
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wrote...
#1
7 years ago
Answer to q. 1

a

Answer to q. 2

e
loryatchy Author
wrote...
#2
7 years ago
Amazing, correctly answered
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