A zeitgeber is a(n) ____. a. biological clock b. animal that ...

[JMatthes]

A zeitgeber is a(n) ____.
 
  a. biological clock
  b. animal that does not have a biological clock
  c. environmental cue that resets a biological clock
  d. body activity that is controlled by a biological clock

Question 2

In the context of the three Rs of animal research, refinement refers to ____.
 
  a. reducing pain and discomfort
 b. recognizing potential confounders
 c. reusing prior research analysis
 d. recombining effective statistical tests

[Bigfoot1984]

Answer to Question 1

c

Answer to Question 2

a

[JMatthes]

Thanks for the timely response, appreciate it

[apple]

TYSM