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Reproductive strategies what are the advantages and disadvantages of sexual and asexual reproduction Highlight the terms/words that describe the type of reproduction using other. Is one better than the other
You are an ecologist who wants to find out » the investigating reproductive strategies worksheet 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. The largest american population is in yellowstone national park.
Reproduction of grizzly bears from june through july is mating season
Until the mother begins her winter hibernation, grizzly bear embryos do not begin to develop, although mating may have taken place up to 6 months before. 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.
The purpose of asexual reproduction is so females not able to find a mate can still reproduce Sexual reproduction is a type of reproduction that involves meiosis and the type of reproduction that a grizzly bear uses The purpose of sexual reproduction is for females that are able to find mates easily can reproduce. Reproduction grizzly bears have one of the lowest reproductive rates of all terrestrial mammals in north america
This is due to numerous ecological factors
Grizzly bears do not reach sexual maturity until they are at least five years old Once mated with a male in the summer, the female delays embryo implantation until hibernation, during which miscarriage can occur if the female does not. Bears are among the least productive mammals in north america In theory, a male and female black bear born this year—if they breed as soon as they reach sexual maturity and as often as possible, and if all their offspring survive to do the same—could in the space of ten years have grown to a population of 15 bears (assuming none died)
Grizzly bears are even less productive Asexual vs sexual reproduction procedure
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