Cellulase is an enzyme. Like other enzymes cellulase is mostly made of proteins. Cellulase is used to catalyze (digest) celluloysis, which is a polysaccharide in plants' cell wall.
Answer:
Rain, sleet or snow
Explanation:
Acid rain results when sulfur dioxide (SO2) and nitrogen oxides (NOX) are emitted into the atmosphere and transported by wind and air currents. The SO2 and NOX react with water, oxygen and other chemicals to form sulfuric and nitric acids. These then mix with water and other materials before falling to the ground.
Answer:
Cuttings: Pieces of stem or root cut from a plant to produce new plants
Herbaceous cutting: type of cutting taken from plants that never form a woody stem
Leaf cutting
:a cutting that includes a short section of stem with a leaf attached
Stem cutting
: a cutting made from short pieces of thickened leafless stems containing at least one node.
Air layering
: a type of layering in which the stem is girdled, the cut is dusted in rooting hormone, and the dusted cut is covered with moss
Two ways:
1. In prophase I of meiosis the homologous chromosomes synapse and crossing over occurs. This switches sections of two of the sister chromatids so the outer two chromatids have the same mix of alleles as the parents and the inner two chromatids have new combinations of alleles.
2. Meiosis puts only one of each kind of chromosome in the gametes, selecting one of each homologous pair at random. Then when each gamete joins with the gamete from the other parent, there are practically infinite combinations of the alleles possible.
Answer:
elliptical, spiral and irregular and elliptical are the oldest
Explanation:
