![]() Budding is also common among invertebrates.Many invertebrates can reproduce asexually by fission, in which a parent separates into two or more approximately equal-sized individuals.Sexual reproduction increases genetic variation among offspring by generating unique combinations of genes inherited from two parents.ĭiverse mechanisms of asexual reproduction enable animals to produce identical offspring rapidly.The male gamete is the sperm, which is usually small and motile.The female gamete, the unfertilized egg, or ovum, is usually large and nonmotile.Sexual reproduction is the formation of offspring by the fusion of haploid gametes to form a diploid zygote. ![]() Asexual reproduction involves the formation of individuals whose genes come from a single parent.Overview: Doubling Up for Sexual ReproductionĬoncept 46.1 Both asexual and sexual reproduction occur in the animal kingdom
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