Is one “better” than the other You are an ecologist who wants to find out You decide to compare 5 aspects of organisms that reproduce sexually with ones that reproduce asexually You will begin by looking at two organisms. How do grizzly bear reproduce Grizzly bear reproduction and maturation grizzly bears have a promiscuous mating system
Cubs from the same litter can have different fathers Cubs are born in the den in late january or early february and remain with the female for 2 to 3 years before the mother mates again and produces another litter. Is the polar bear asexual or sexual Polar bears are sexual animals They reproduce through sexual reproduction, with males and females needing to mate in order to produce offspring. Reproduction of grizzly bears from june through july is mating season
Grizzly bear females segregated from males and data support the hypothesis that females avoid males We evaluated testicular growth, seminiferous tubule development, and age of sexual maturity in 20 male grizzly bears (ursus arctos horribilis) killed in montana and wyoming between 1978 and 1992 Seminiferous tubule diameter did not differ among the regions of each testicle sampled Testicular mass was related linearly to age.
OPEN
