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Which is the WORST study break activity?
Snacking on junk food
Taking a nap
Media-related activities (TV, video games, browsing the web)
Excessive caffeine
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Previous poll results: Where do you get your textbooks?
  
ppk
wrote...
Valued Member
On Hiatus
Posts: 3585
6 years ago
Cells move to new positions as an embryo establishes its three germ tissue layers during     
A) cleavage.
B) determination.
C) fertilization.
D) gastrulation.
E) induction.
Read 2679 times
1 Reply
wrote...
Staff Member
6 years ago
D
- Master of Science in Biology
- Bachelor of Science (Biology)
- Bachelor of Education
      
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