Q.What is the term given to organisms that possess both the male and female sex organs in the same body? Name one animal which shows this character. (1+1=2)

Milt is the sperm-containing seminal fluid of the male fish; spawn is the mass of eggs shed by the female fish.

In fishes (and many other aquatic animals) fertilisation is usually external - the male and female shed their reproductive products into the water.

In transverse binary fission of ciliates (e.g. Paramecium), the anterior daughter is the proter and the posterior daughter is the opisthe.

Ciliate protozoans like Paramecium reproduce asexually by transverse binary fission, in which the parent cell divides across its transverse axis into two daughter cells. To distinguish the two daughters, they are named according to which part of the parent's body they retain:

| Term | Which daughter | Retains |

| --- | --- | --- | …

Offspring are called clones when they arise from asexual reproduction (mitosis, single parent, no gamete fusion), because they are genetically identical to the parent.

Honesty note on the printed wording: the concept being tested here is the definition of a 'clone,' and biologically, clones arise from asexual reproduction, not sexual reproduction — if the paper's wording literally says 'sexual,' that is most likely a printing slip in the original paper, since offspring of sexual reproduction are, by definition, genetically varied (not clones). The explanation below answers the underlying concept correctly.

In asexual reproduction, a single parent produces offspring through mitotic cell division alone, with no fusion of male and female gametes. Because mitosis simply copies the parent's DNA without any genetic recombination, every offspring produced this way carries an identical genetic makeup to the parent and to each other. Such genetically identical individuals, all derived from one parent by asexual means, are termed clones.

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Organisms possessing both male and female sex organs in the same individual are called hermaphrodites (bisexual organisms); the earthworm is a well-known example.

Organisms in which a single individual bears both male reproductive organs (testes) and female reproductive organs (ovaries) are termed hermaphrodites (also called bisexual organisms, or the condition is called hermaphroditism). Such organisms produce both sperm and eggs, though many hermaphroditic animals still require cross-fertilisation with another individual (rather than self-fertilising) to reproduce.

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