Wiktionary (0.00 / 0 votes) Rate this definition: crease (Noun) A line or mark made by folding or doubling any pliable substance; hence, a similar mark, however produced. crease (Noun) One of the white lines drawn on the pitch to show different areas of play; especially the popping crease, but also the bowling crease and the return crease. crease (Noun)
Asexual reproduction in liverworts: a caducous phylloid germinating. Asexual reproduction is a mode of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes and almost never changes the number of chromosomes.ragmentation is a form of asexual reproduction where a new organism grows from a fragment of the parent. Each fragment develops into a mature, fully grown individual. Fragmentation is seen in many organisms such as animals (some annelid worms [Which ones?] , turbellarians and sea stars), fungi, and plants.
While asexual reproduction only involves one organism, sexual reproduction requires both a male and a female. Some plants and unicellular organisms reproduce asexually. Most mammals and fish use sexual reproduction.Some organisms like corals and komodo dragons can reproduce either sexually or asexually.exual reproduction is reproduction that requires a male and a female of the same species to contribute genetic material. Special cells called gametes are produced through meiosis, which halves the number of chromosomes in each resulting cell.