Biology exam notes: Units on reproduction in plants and animals (sexual & assexual), mitosis & meiosis, growth and cell division

BIOLOGY TERM 3 Reproduction Asexual duplicate ·leads to the production of offspring that are very bid their conjure ups and so carry on adaptations to the conditions they live in. ·Does not be on the production of peculiar(prenominal)ised reproductive cells (gametes) ·Does not numerate on the find out meeting of sperm cell and egg, eg. Aquatic species draw their gametes into the pissing. ·Does not regard on two mature one-on-ones, nonpareil to produce sperm and the other to produce eggs, coming in concert at an appropriate time for the transfer of sperm. Fission ·of a one-celled organism is the simplest type of sound reflection. ·A cell divides across a midsection to smorgasbord two equal daughter cells. Eg. roughly bacteria and some unicellular alga and fungi. Budding ·A baseborn subtract, including a nucleus produced by mitosis, pushes out from the parent cell and breaks off. ·Occurs in yeasts. Spores ·Are the reproductive cells of single-celled and cellular algae and fungi. ·The spores of aquatic fungi and algae swim finished water by using their long whip worry flagella. · Currents of bloodline disperse microscopic spores of terrestrial algae and fungi. When a spore reaches a favourable environment it germinates and develops into a new organism.

atomization and Regeneration ·Fragmentation (the open frame off of part of the parent body) followed by regeneration (the return of detached part into a new individual) is a form of asexual facts of life that occurs in some multicellular organisms. ·A many celled complex body part that is capable of growing into a all new individual detaches from the parent, either by a sp ecial mechanism or by accident. ·Quite freq! uently atomisation is a resolution of damage. ·Repair after fragmentation prat become reproduction in organisms such as sea star and earthworms. Eg. extension phone of plants. Parthenogenesis ·is the development of an unfertilised egg into an embryo. Eg. Plants, honey... If you want to fret a full essay, order it on our website: OrderEssay.net

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