Match the mechanisms of maternal recognition of pregnancy (MRP), which are depicted in the images below and labeled as MRP 1, MRP 2, and MRP 3, with the corresponding species of animal, as well as a brief description of that specific MRP. Answers may be used only once or not at all.  

Based on distribution of chorionic villi, the placentae of the dog and cat are classified as which of the following?

Which species does NOT rely on the cervix as a sperm barrier?

The tunica dartos differs from the cremaster muscle because it:

The embryonic hypothalamus is inherently ________, unless developmentally modified via gonadal ________ synthesis.

With or without PGF2α release being explicitly shown, we have discussed the importance of endocrine cascade shown above, which is initiated by luteolysis and/or the removal of a given source of P4 or Progesterone, multiple times. In fact, it provides the rationale for the use of various hormones and their analogs in various estrus/ovulation synchronization protocols. Match a specific colored rectangle to the specific hormone it is representing. Answers may be used only once or not at all.

Which structure guides testicular descent toward the scrotum?

INSL‑3 is produced primarily by which cells?

Which structure causes the ovary to move posteriorly and laterally in abdomen during embryonic development?

Based on Dr. Evans’ Summary Recap of Fertilization, provide the correct sequence for the major events related to fertilization, beginning with the entry of viable sperm into the uterus. Answers may be used only once or not at all.