EVERYDAY SCIENCE

Detailed explanation-1: -Most reptiles re produce s exually and have internal fertilization. Males have one or two penises that pass sperm from their cloaca to the cloaca of a female. Fertilization occurs within the cloaca, and fertilized eggs leave the female’s body through the opening in the cloaca.

Detailed explanation-2: -Internal Fertilization This occurs in most bony fish, many reptiles, some cartilaginous fish, most amphibians, two mammals, and all birds.

Detailed explanation-3: -The offspring develops in the female and is born alive. This occurs in most mammals, some cartilaginous fish, and a few reptiles. Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. The embryo is isolated within the female, which limits predation on the young.

Detailed explanation-4: -Reptiles, birds and mammals exhibit internal fertilization wherein fertilization occurs inside the body of the organism. The lizard being a reptile, the cow being a mammal and the crow being a bird show internal fertilization.

Detailed explanation-5: -What Is Internal Fertilisation? Syngamy of gametes occurs inside the female body after insemination through copulation. Observed in birds, mammals, birds occurring in terrestrial plants and animals, and also in some of the aquatic entities.