Question

differentiate between
a. sexual reproduction and asexual reproduction
b. gametes and zygote
c. external fertilization and internal fertilization
d. viviparous and oviparous animals​

Answer 1

Answer:

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1. Sexual Reproduction:- Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete (such as a sperm or egg cell) with a single set of chromosomes (haploid) combines with another to produce an organism composed of cells with two sets of chromosomes (diploid).[1] Sexual reproduction is the most common life cycle in multicellular eukaryotes, such as animals, fungi and plants. Sexual reproduction does not occur in prokaryotes (organisms without cell nuclei), but they have processes with similar effects such as bacterial conjugation, transformation and transduction, which may have been precursors to sexual reproduction in early eukaryotes.

asexual reproduction:-Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes. The offspring that arise by asexual reproduction from a single cell or from a multicellular organism inherit the genes of that parent. Asexual reproduction is the primary form of reproduction for single-celled organisms such as archaea and bacteria. Many multicellular animals, plants and fungi can also reproduce asexually.

2.Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome.

A zygote is a eukaryotic cell formed by a fertilization event between two gametes. The zygote's genome is a combination of the DNA in each gamete, and contains all of the genetic information necessary to form a new individual.

3.External fertilization is characterized by the release of both sperm and eggs into an external environment; sperm will fertilize the egg outside of the organism, as seen in spawning

Internal fertilization is the union of an egg cell with a sperm during sexual reproduction inside the female body. For this to happen there needs to be a method for the male to introduce the sperm into the female's reproductive tract

4.Viviparous are the animals which give birth to the young ones, and their development occurs inside the female body (mother's womb). Oviparous are known to lay eggs, which can be fertilized or unfertilized. Viviparous animals directly give birth to the young ones. It can be internal or external fertilization.

An oviparous animal is one that produces eggs, and the young hatch after being expelled from the body. Many amphibians, birds, fish and reptiles are oviparous and often make nests to protect their eggs. ...

Answer 2

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Explanation:

The main difference between oviparousand viviparous animals is that oviparous animals do not undergo any embryonic development inside the mother whereasviviparous animals develop into a younganimal inside the mother. This meansoviparous animals lay eggs. ... Most mammals are viviparous animals.

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