A cage containing male mosquitoes has a small earphone placed on top, through which the sound of a female mosquito is played. All the males immediately fly to the earphone and go through all of the steps of copulation. What is the best explanation for this behavior?
A) The males learn to associate the sound with females.
B) Copulation is a fixed action pattern, and the female flight sound is a sign stimulus that initiates it.
C) The sound from the earphone irritates the male mosquitoes, causing them to attempt to sting it.
D) The reproductive drive is so strong that when males are deprived of females, they will attempt to mate with anything that has even the slightest female characteristic.
E) Through classical conditioning, the male mosquitoes have associated the inappropriate stimulus from the earphone with the normal response of copulation.
Comparison of small subunit rRNA gene sequences of vertebrate, invertebrate chordate, and invertebra
Tubal ligation. To minimize the size of the incisions necessary, laparoscopic surgery may be used to
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Thoracic cage. Avoid heavy pressure over the sternum and xiphoid process; caution over rib cage.
Male Reproductive System - Semen
The Male Reproductive System