What type of fertilization do birds and reptiles have?

How are offspring produced following internal fertilization in fish?

There are three ways that offspring are produced following internal fertilization: oviparity, ovoviparity, and viviparity. In oviparity, fertilized eggs are laid outside the female’s body and develop there, receiving nourishment from the yolk that is a part of the egg. This occurs in most bony fish, many reptiles,…

What is the advantage of internal fertilization in animals?

This occurs in most mammals, some cartilaginous fish, and a few reptiles, making these animals viviparous. 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.

What animals reproduce by internal fertilization?

Internal Fertilization. This occurs in some bony fish (such as the guppy, Lebistes reticulatus ), some sharks, some lizards, some snakes (such as the garter snake, Thamnophis sirtalis ), some vipers, and some invertebrate animals (such as the Madagascar hissing cockroach, Gromphadorhina portentosa ).

What adaptations allowed reptiles to live a terrestrial life?

Reptiles were the first fully terrestrial vertebrates to evolve on Earth. One adaptation that allowed them to live a terrestrial life was the evolution of the amniotic egg and internal fertilization. With internal fertilization, there is a greater chance of the sperm to be delivered to the egg and for…

What animals reproduce from eggs retained inside the female?

This occurs in some bony fish, some sharks, some lizards, some snakes, some vipers, and some invertebrate animals. Fertilized eggs are retained inside the female, and the embryo receives nourishment from the mother’s blood through a placenta.

Why do fish eggs need to be fertilized by individuals?

The presence of the fertilized eggs and developing young in the water provides opportunities for predation resulting in a loss of offspring. Therefore, millions of eggs must be produced by individuals, and the offspring produced through this method must mature rapidly.

Where do fertilized eggs develop in animals?

Fertilized eggs are laid outside the female’s body and develop there, and the embryo receives nourishment from the yolk that is a part of the egg. This occurs in most bony fish, many reptiles, some cartilaginous fish, most amphibians, two mammals, and all birds.

What are the methods of fertilization in animals?

There are three ways in which internal fertilization produces offsprings: The fertilized eggs are laid outside the body of the mother. The egg receives nourishment from the yolk. For eg., fish, amphibians, reptiles and all birds are all oviparous.

What are the disadvantages of internal fertilization Quizlet?

What are the disadvantages of internal fertilization? 1 More energy required to find mate. 2 Less zygotes- less offspring. 3 More energy required to raise offspring.

Do reptiles have internal or external fertilization?

Do reptiles have internal or external fertilization? Most reptiles reproduce sexually 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.

How do birds reproduce?

Birds reproduce by internal fertilization, during which the egg is fertilized inside the female. Like reptiles, birds have cloaca, or a single exit and entrance for sperm, eggs, and waste.

Do fish have internal or external fertilization?

Internal Fertilization. In oviparity, fertilized eggs are laid outside the female’s body and develop there, receiving nourishment from the yolk that is a part of the egg. This occurs in most bony fish, many reptiles, some cartilaginous fish, most amphibians, two mammals, and all birds.

How do reptiles conserve water?

Living on land means limited access to drinking water, so reptiles’ kidneys have adapted. They conserve water by producing less urine in more concentrated forms.

How do amphibians and reptiles survive in the desert?

Thus, amphibians and reptiles use a variety of mechanisms not only to survive extreme heat and aridity but to thrive in hot, dry deserts. Some of these adaptations were inherited from tropical ancestors, while others evolved as the Sonoran Desert formed in the late Miocene.

Why do animals lay eggs instead of giving birth?

This means the body has more resources to create more clutches Survival – in the case that the mother dies, eggs can survive without her. Genetic diversity – fertilization of eggs for laying allows for multiple matings from different males meaning there’s a higher chance to produce a greater diversity of young

What can fish eggs tell us about fish reproductive strategies?

Fish eggs have macroscopic and microscopic characteristics that vary according to the reproductive strategies of the species. In ichthyoplankton samples, the identification of fish eggs can provide information on spawning areas and the biology of their dispersion.

How do reptiles hatch from eggs?

Reptiles that hatch from eggs need to be able to break through the shell as they hatch. Most reptiles will have an egg tooth to help them break out of the tough egg but turtles, crocodiles, and tuatara have a caruncle, a fleshy growth, on their snout.

What is the process of fertilization in animals?

Introduction to the Process of Fertilization in Animals: Fertilization is a complex process which involves the fusion of male and female gametes followed by the fusion of their cytoplasm. Fertilization begins with the sperm’s approach to the egg and ends with the fusion of egg and sperm pronuclei. It involves a series of events.

Which of the following is a mammal that lays eggs?

Humans are viviparous. Mammals such as cows, monkeys, chimpanzees are viviparous. Name a mammal that lays eggs. The duck-billed platypus is a mammal that lays eggs.

What is the difference between fertilization and embryo development in animals?

In oviparous animals, fertilization takes place internally but embryo development takes place externally. The eggs of birds such as hen and duck carry immature embryo in them. The hard shells of eggs protect them from damage.

What is the adaptive significance of internal fertilization and watertight eggs?

What is the adaptive significance of internal fertilization and watertight eggs? This allows reptiles to fertilize and lay eggs on land without dependence on water. How doe the legs of different reptiles vary in number, size, and function?

What is internal fertilization and external fertilization?

internal fertilization and external fertilization STUDY Flashcards Learn Write Spell Test PLAY Match Gravity Created by Osman_Yavuz Terms in this set (27) fertilization the union of sperm and egg. Egg(haploid) + sperm (haploid) = zygote zygote fertilized egg external fertilization occurs outside of the female parent. Many eggs are produced

Which of the following is an example of external fertilization?

fertilization the union of sperm and egg. Egg(haploid) + sperm (haploid) = zygote zygote fertilized egg external fertilization occurs outside of the female parent. Many eggs are produced examples of organisms that do external fertilization fish, amphibians, and aquatic vertebraes

Do lizards have internal or external fertilization?

The lizard uses internal fertilization by connecting the male and female together and having a sexual connection to release the Sperm into the female’s body. The Lizard is usually born in the summer time and could take up to three months for the eggs to hatch. Similarly, do birds have internal or external fertilization?