A male rat is castrated immediately after birth and then given injections of estradiol and progesterone in adulthood. This male rat would be expected to
A) exhibit enhanced inter-male aggression.
B) attempt to copulate with a female in heat.
C) show lordosis in response to another male.
D) attempt to copulate with a nonestrous female.
E) show maternal aggression.
Question 2
Which of the following conditions will block or diminish female rodent sexual behavior?
A) damage to the lateral thalamus
B) being in a nonestrous state
C) targeted mutations of ghrelin receptors
D) genetic ablation of the SRy gene.
E) administration of estradiol followed by progesterone.
A male Lestes dryas in the "spread-winged" posture that gives the family its common name
Birth Canal
Stages of Natural Birth "مراحل الولادة الطبيعية"
مراحل الولاده "Stages of birth"
Male and female Lions (Panthera leo)