WebThis occurs in most bony fish, many reptiles, some cartilaginous fish, most amphibians, two mammals, and all birds. Reptiles and insects produce leathery eggs, while birds and … WebThe reproductive behaviour of fishes is remarkably diversified: they may be oviparous (lay eggs), ovoviparous (retain the eggs in the body until they hatch), or viviparous (have a direct tissue connection with the developing embryos and give birth to live young). All cartilaginous fishes—the elasmobranches (e.g., sharks, rays, and skates)—employ internal fertilization …
Science KS2 / KS3: The life cycles of different organisms
WebAll birds reproduce by laying eggs. Eggs are produced inside the female and then deposited in a nest. In captive female birds, egg laying, which is actually the equivalent of ovulation in mammals, can happen without fertilization or even the presence of a male. In some species, both female and male birds sit on the nest, while other species ... WebIn comparison, the amphibian mesonephric ridge appears to develop and join the middle and posterior sections in the adult to form an Opisthonephros.15,17 ... In reptiles, as in birds, amphibians and fish, blood to the glomerulus is from a relatively high pressure system: the aorta and renal arteries and to the peritubular capillaries via the ... imagefirst phone number
Animal reproductive system - Reproductive systems of vertebrates
WebOct 27, 2024 · Birds, reptiles, amphibians, and fish are all vertebrates, which means they have an endoskeleton that provides body stability to move. Thus, they have notochord, dorsal nerve cord, pharyngeal slits, and postanal tail at some stage of development. Birds, reptiles, amphibians, and fish also have a common ancestor. WebHow does the life cycle of an insect compare to an amphibian? 13m video. Lesson . 4. Are the life cycles of mammals all the same? 13m video. Lesson . 5. Why do birds lay eggs? 15m video. Lesson . 6. How do lifecycles compare across the animal kingdom? 14m video. Home Site Teacher Hub. Home. About us; Blog; WebSexual reproduction starts with the combination of a sperm and an egg in a process called fertilization. Fertilization ... many reptiles, some cartilaginous fish, most amphibians, two mammals, and all birds. Fertilized eggs are … image first pa