Question

question 29
the term estrus refers to
the reproductive cycle.
the period of sexual receptivity and ovulation.
the period immediately after ovulation.
the scientific term for pregnancy.

question 30
when preparing a mare for a reproductive examination extreme care must be taken so that contamination of the reproductive track does not occur. this is accomplished by having a \clean\ hand and a \dirty\ hand, in which case
only the clean hand should be touching the animal.
the clean hand should be taking scrub materials from the clean bucket.
most of the \work\ should be done by the clean hand.
used scrub materials are transferred into the dirty hand by the clean hand prior to disposal.

Explanation:

For Question 29, estrus is the period when female animals are sexually receptive and ovulation occurs. For Question 30, to prevent contamination during a mare's reproductive - examination, used scrub materials are transferred to the dirty hand by the clean hand before disposal.

Answer:

Question 29: the period of sexual receptivity and ovulation.
Question 30: used scrub materials are transferred into the dirty hand by the clean hand prior to disposal.