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Home Q & A Board Biology-Related Homework Help General Biology
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vr vr
wrote...
Posts: 510
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6 years ago
Passive immunity can be obtained by:
 
  a. having the disease
  b. receiving a vaccination against the disease
  c. receiving antibodies by injection
  d. receiving memory B cells from a donor
  e. receiving a booster vaccination

Question 2

Unlike most other animals, sponges lack which of the following?
 
  a. a digestive tract only
  b. a symmetrical body plan only
  c. tissues only
  d. a digestive tract and a symmetrical body plan only
  e. a digestive tract, a symmetrical body plan, and tissues
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wrote...
#1
6 years ago
Answer to q. 1

c

Answer to q. 2

e
vr Author
wrote...
#2
6 years ago
Dude, you're awesome. I wish I had you as my teacher!
wrote...
#3
6 years ago
Come to the forum always, I'll be around to assist you again
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