WebJun 29, 2024 · Do mammals have internal or external fertilization? In mammals, fertilization takes place internally in the protected environment of the ampulla of the oviduct, as opposed to external fertilization where sperm and egg meet outside the parent’s body (e.g., as in fish, reptiles, amphibians and invertebrates). WebA water body is required to initiate external fertilization. The sperms would die on land. It is a reproductive disadvantage for most of the animals because most of the gametes die …

Does internal fertilization occur in fish? – TeachersCollegesj

WebThis method of copulation and internal fertilization in mammals is different from reptiles and birds, which have a common opening called a cloaca for the urinary, digestive, and reproductive tracts. ... Fish, on the other hand, usually display external fertilization, where the male and female release their eggs and sperm into the water, and ... In fish, fertilisation of eggs can be either external or internal. In many species of fish, fins have been modified to allow Internal fertilisation. Similarly, development of the embryo can be external or internal, although some species show a change between the two at various stages of embryo development. Thierry Lodé described reproductive strategies in terms of the development of the zygote a… fishing charters near gulf shores alabama

Do Cnidaria have internal or external fertilization? – Sage-Advices

WebJun 10, 2013 · Study now. See answer (1) Copy. For most fish it is external; however some families have internal fertilization such as the 'livebearers', which include the guppies, … WebFirst, we will discuss two different modes of introducing the sperm and egg: external fertilization and internal fertilization. Then, we will discuss what happens at the big … fishing charters near englewood fl