![]() ![]() scrotum External sac that contains the testes to regulate a lower temperature for the testes epididymis A long, coiled duct on the outside of the testis in which sperm mature. seminiferous tubules Narrow, highly coiled tubules that produce sperm in the testes. testes The male gonads, which produce sperm and secrete male sex hormones. Mammals generally lack a cloaca? T monogamy sustained sexual partnership of two individuals What mechanism did make insects use to prevent females from being sexually successful with other males? Transfer secretions into the female to make her less receptive to other male courtship, decreasing her likelihood of mating again. gonads organs that produce gametesi cloaca a common chamber into which the digestive, reproductive, and excretory systems empty T or F remain in uterus during fetal development to be nourished by the mother's blood supply and placenta. embryos of eutherian (placental) mammals are. Why are there typically lessnzyhotes produced by internal fertilizers? Internal fertilizers have an increased chance of survival due to protection and nourishment Marsupials Mammals whose immature offspring complete their development in an external pouch attached to a mammary gland. Pheromones water soluble chemicals released by an animal that affect the behavior of other members of the same species Pheromones differ from hormones in that they are transmitted between members of the same species. What is the purpose of courtship in external fertilization? It increases the likelihood of successful fertilization by triggering the release of both sperm and egg. Receives nourishment from the mother's blood through a placenta spawning process by which male and female fishes release their gametes near each other in the water at the same time courtship behavior The behavior that animals of the same species engage in to prepare for mating. ovoviparity eggs are retained in body nourished by yolk until shortly before hatching or until they hatch viviparity process of embryotic development occurring within the mother. Occurs at midpoint each cycle Fertilization Fusion of an egg and sperm cell external fertilization process in which eggs are fertilized outside the female's body internal fertilization Process in which eggs are fertilized inside the female's body Oviparity describes organisms that produce eggs that develop and hatch outside the body of the mother. sessile animals adapted what evolutionary feature in order to ensure reproduction? Hermaphroditism Hermaphroditism A situation in which an animal has the reproductive organs of both sexes ovulation The process of releasing a mature ovum into the fallopian tube to the ovaries. Seen in honeybees, ants, and wasps In regards to parthenogenesis, how do the genders of honeybees differ? Males are haploid, and developed via parthenogenesis, females are diploid and develop through sexual reproduction sessile An organism that does not move. Parthenogenesis a form of asexual reproduction in which the egg develops in the absence of sperm. ![]()
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