Explanation:
To put in a explanation. Biodiversity is needed to boost ecosystem productivity, allowing any species in the area to have an important role to play.
There are three types of Biodiversity
Genetic
Species
Ecosystem
Just use this info I gave you and put it all together
And here's an example.
A large number of species of plant, means more variety in crops. This is species diversity.
3-7 is a negative number and the answer is -4
Answer:
Pollen grains are produced by meiosis of microspore mother cells that are located along the inner edge of the anther sacs (microsporangia). ... The tube cell (also referred to as the tube nucleus) develops into the pollen tube. The germ cell divides by mitosis to produce two sperm cells.
Answer:
Spermatozoa: 23 chromatids
Ootid: 23 chromatids
Anaphase of mitosis: 92 chromatids
Oogonium prior to S phase: 46 chromatids
Explanation:
1) Spermatozoa, also known as sperm cell is a haploid gamete (n) that results from the meiotic division of a dipoid reproductive cell. Since there are 23 pairs of chromosomes or 46 chromosomes in human somatic cells, there will be 23 chromosomes in the spermatozoa. Also, meiotic division occurs twice and separates sister chromatids in meiosis II. Hence, spermatozoa will contain 23 chromosomes (n) with 1 chromosome each i.e. 23 chromatids
2) Ootid is a haploid cell that arises from the second meiotic division of a secondary oocyte. A primary oocyte, with 46 chromosomes/92 chromatids, undergoes meiosis I to produce secondary oocyte with 23 chromosome/46 chromatids, which in turn undergoes meiosis II to produce ootid with 23 chromosomes/23 chromatids (each chromatid is an individual chromosome).
3) Mitosis is the cell division that produces two identical diploid (2n) daughter cells. Note that, 46 chromosomes get replicated to form 92 chromatids. In the anaphase stage of mitosis, sister chromatids get pulled apart to opposite poles but still remain in the cell as cytokinesis is yet to occur.
4) Oogonium is the diploid (2n) cell that gives rise to primary oocyte via mitosis. Prior to the S phase where chromosomes replication occurs, Oogonium cell will contain 46 chromosomes and 46 chromatids.
Answer:
Mushrooms belong to the Kingdom Fungi.
Explanation:
Fungi are eukaryotic organisms that act as the main decomposers in the environment. Examples are yeasts, molds and mushrooms. Black truffles are aromatic edible fungi that belong to the Ascomycota phylum.
Mushrooms belong to the Basidiomycota phylum. Mushrooms are saprophytes, as they have no chlorophyll and obtain their food from metabolizing nonliving organic matter.
Edible mushrooms include commercially raised mushrooms like button mushrooms, portobello mushrooms, straw mushrooms, oyster mushrooms, shiitakes, enokitake, etc and wild-harvested mushrooms such as black trumpets, milk mushrooms, porcini mushrooms, morels, chanterelles, etc.
Poisonous mushrooms include amanita, galerina, conocybe, lepiota, etc. They contain deadly poison which causes a range of reactions such as hallucinations, allergic reactions, digestive problems, severe organ failure, and death.
