How long does 4 hits of weed stay in your system? Weed stays in your fats cells. If you excercise and/or have a high metabolism it becomes a shorter peroid of time. But in a urine drug test, the use of cannabis is detectavlâ¦e for periods of up to one month. I like to dilute my pee with warm sink water and I excercise like crazy before a drug test.
Mitosis in Unicellular Organisms. In unicelullar (single-celled) organisms, mitosis is a common and important form of asexual reproduction. It can also be called binary fission, and plays a role in a similar process called multiple fission.Organisms that reproduce through mitosis make exact copies of themselves.n unicellular organisms such as bacteria, mitosis is a type of asexual reproduction, making identical copies of a single cell. In multicellular organisms, mitosis produces more cells for growth and repair.
Meiosis occurs only in sexually reproducing organisms. Depending on the organism, it may produce haploid gametes, which do not divide further but instead fuse to produce a diploid zygote; or it may produce haploid spores, which divide by mitotic cell cycles and produce unicellular or multicellular organisms. In animals, where the somatic (body) cells are diploid, the products of meiosis are the gametes. In many fungi and some algae, meiosis occurs immediately after two haploid cells fuse, and mitosis then produces a haploid multicellular adult organism (e.g., filamentous fungi, algae) or haploid unicellular organisms (e.g., yeast, unicellular algae).