I believe it is C, there are four nitrogenous bases involved. Adenine, cytosine, guanine, and thymine
The chemical originally contained in aerosol propellants that is thought to have contributed to the depletion of the ozone layer is the chlorofluorocarbons or the CFCs. These are nonflammable and nontoxic substances that has carbon, chlorine and fluorine in their structure. These substances are used as propellants, solvents and as refrigerants. However, it was found from researches that these substances would contribute to the depletion of the ozone layer in the atmosphere which is why under the Montreal Protocol, the use of these are banned and other alternatives are being used now in replace with the CFC. One alternative used is the <span>hydrofluorocarbons.</span>
Answer:
B. the number and kinds of atoms in the compound
Explanation:
No compound shows either properties or reaction also molecules never react as are chemically stable
Answer:
Male (X Chromsome)
Explanation:
The mother is usually homozygous, meaning she has two of the same chromosome, so her offspring will get the same chromosome from her regardless. However, the father is heterozygous, meaning he has different chromsomes. Him passing down one or the either will determine the sex.
For example, in humans the mother passes the X, and then the father determines if it is a boy (passes down Y), or if it is a girl (passes down X).
