In a given test, all organisms should be approximately the same age and should be taken from the same source.
All organisms should come from the same place and be approximately the same age in a given test.
It is not necessary to take organisms from the same source and age when conducting a test.
The dog is brown all over.
HCFA replaced the objectives section with their very own mission statement.
You like country and other easy listening?
Some candidates want him to be involved in the difficult issues of the day.
A female is playing with a ball
Julia, leave them alone.