Biological Reproduction

Amoeba reproduces by multiple fission (sporulation) during unfavorable conditions, forming a protective cyst and producing many amoebulae. Binary fission occurs during favorable conditions. Conjugation is a ciliate protozoan process, not amoeboid. Budding occurs in organisms like Hydra and yeast.

Hydra reproduces asexually by budding during favorable conditions when food is abundant. A small outgrowth (bud) develops into a complete organism and detaches. Sexual reproduction (gametes) occurs during unfavorable conditions. Gemmules are sponge structures, not hydra.

Identical (monozygotic) twins develop from a single fertilized egg (zygote) that splits into two embryos, each developing independently. They don't come from separate gametes, ova, or sperm - those would produce fraternal (dizygotic) twins or separate siblings.

Genetic recombination is the production of offspring with combinations of traits that differ from those found in either parent. In eukaryotes, genetic recombination during meiosis can lead to a novel set of genetic information that can be passed on from the parents to the offspring.

Isogamy is a form of sexual reproduction where gametes are morphologically similar or identical (no distinction between 'male' and 'female' gametes). Monocystis, a protozoan parasite of earthworms, exhibits isogamy. Hydra reproduces asexually by budding, Planaria can reproduce both sexually and asexually, and Plasmodium (malaria parasite) has complex sexual and asexual stages in its life cycle.

The gametophyte may replicate using monospores, but produces sperm in spermatangia, and eggs in carpogonium.

Raphid pennate diatoms are capable of gliding movement that is caused by the secretion of mucopolysaccharides, derived from vesicles or crystalline bodies, through the raphe. Araphid pennate diatoms lack a raphe and posses a central, unornamented area known as the sternum or pseudoraphe. No centric diatom has a raphe.

Craticula is a genus of diatom that lies on or in the top layers of sediments in the freshwater to brackish water environments it inhabits. In addition to frustule morphology the genus differs from closely related species by its sexual reproduction and movement in response to light.

Amoeba reproduces by dividing itself into two. This type of asexual reproduction is called binary fission.

Fragmentation involves breaking of parent organism into many fragments. Each fragment develops into an individual organism.

Budding is a form of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. The new organism remains attached as it grows, separating from the parent organism only when it is mature, leaving behind scar tissue.

Deuteromycota, or imperfect fungi, is an artificial group comprising fungi for which no sexual reproductive cycle has been observed. Penicillium, from which penicillin is obtained, is a deuteromycete.

This is the correct option as all of the above are methods of asexual reproduction.

This is the correct option. Prokaryotes reproduce by the method of binary fission.

Seeds are formed by the fusion of a male gamete with another male gamete, is a wrong statement. Seeds are formed by the fusion of a male gamete with a female gamete.