Which animal produces a hard-shelled egg that matures outside the mother?

Most fish, amphibians, reptiles, dinosaurs, birds, monotremes, arthropods and molluscs lay eggs outside the mother's body. They are always in some kind of container, a shell or covering. Reptiles, birds and monotremes lay cleidoic eggs: bird eggs are an example.

1. Which animals produce eggs that develop within the mother's body?
2. What animals fertilize the eggs outside the female reproductive tract?
3. When an egg is fertilized outside the female it is?
4. Where does fertilization take place in animals?
5. Do fish offspring usually develop inside or outside the mother?
6. What is internal Fertilisation animal?
7. Are bird eggs fertilized externally?
8. What are the examples of animals that undergo external fertilization?
9. What do you understand by parthenogenesis?
10. Which is not a viviparous animal?
11. What animals reproduce asexually?
12. Which is not Oviparous animal?
13. When fertilization takes place outside the body of the parents it is called?
14. Where does fertilization take place in female?
15. Where the fertilization takes place of butterfly?

Which animals produce eggs that develop within the mother's body?

Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), and monotremes.

What animals fertilize the eggs outside the female reproductive tract?

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.

When an egg is fertilized outside the female it is?

External fertilization is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body. It is contrasted with internal fertilization, in which sperm are introduced via insemination and then combine with an egg inside the body of a female organism.

Where does fertilization take place in animals?

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).

Do fish offspring usually develop inside or outside the mother?

In most fish species, fertilization takes place externally. These fish are oviparous. Eggs are laid and embryos develop outside the mother's body. In a minority of fish, including sharks, eggs develop inside the mother's body but without nourishment from the mother.

What is internal Fertilisation animal?

Internal fertilization is the union of an egg and sperm cell during sexual reproduction inside the female body. ... Following fertilization, the embryos are laid as eggs in oviparous organisms, or continue to develop inside the reproductive tract of the mother to be born later as live young in viviparous organisms.

Are bird eggs fertilized externally?

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. The male brings his sperm to the female cloaca. The sperm fertilizes the egg.

What are the examples of animals that undergo external fertilization?

Most fish, bivalves (like clams), and crustaceans, like this peacock mantis shrimp, use external fertilization.

What do you understand by parthenogenesis?

parthenogenesis, a reproductive strategy that involves development of a female (rarely a male) gamete (sex cell) without fertilization. It occurs commonly among lower plants and invertebrate animals (particularly rotifers, aphids, ants, wasps, and bees) and rarely among higher vertebrates.

Which is not a viviparous animal?

Cat, rat and rabbit give birth to live young ones, so they are viviparous animals. Lizards lay eggs, so they are not viviparous animals.

What animals reproduce asexually?

Animals that reproduce asexually include planarians, many annelid worms including polychaetes and some oligochaetes, turbellarians and sea stars. Many fungi and plants reproduce asexually. Some plants have specialized structures for reproduction via fragmentation, such as gemmae in liverworts.

Which is not Oviparous animal?

Cat, rat and rabbit give birth to live young ones, so they are viviparous animals, not oviparous. Snake, fish and frog lay eggs, so they are oviparous animals.

When fertilization takes place outside the body of the parents it is called?

Fertilization or the fusion of gametes which takes place inside the female body is called internal fertilization. The fertilization which takes place outside the female body is external fertilization.

Where does fertilization take place in female?

Fertilization of an egg by a sperm normally occurs in the fallopian tubes. The fertilized egg then moves to the uterus, where it implants to the uterine lining.

Where the fertilization takes place of butterfly?

Coupling: Butterflies mate on the ground or in the air; internal fertilization of the eggs takes from a few seconds to many minutes or hours. During mating, the male transfers a sperm packet (called a spermatophore) into the female; these sperm will fertilize the female's eggs.