It is a progressive succession as the simple plants grow into hardwood forest, it will <span>contains more species and biomass over time.</span>
Because of the fact that female mammals have chromosomes from both parents (from the father and from the mother) and all cells have the same inactivated X chromosome female mammals are considered to be mosaic <span>of the maternal and paternal cells.</span>
Milk is removed from the Mammary Glands.
Answer;
-Genetic heterogeneity and epistasis.
Explanation;
-Marfan syndrome is a genetic disorder that affects the body's connective tissue that holds all the body's cells, organs and tissue together.
-Genetic heterogeneity is defined as mutations at two or more genetic loci that produce the same or similar phenotypes. Genetic heterogeneity may be either; allelic heterogeneity, which occurs when a similar phenotype is produced by different alleles within the same gene; or locus heterogeneity, which occurs when a similar phenotype is produced by mutations at different loci.
-A gene is said to be epistatic when its presence suppresses the effect of a gene at another locus. Epistatic genes are sometimes called inhibiting genes because of their effect on other genes which are described as hypostatic.
-From these descriptions the marfan syndrome demonstrates both genetic heterogeneity and epistasis.
Answer:
The mass number is the sum of protons and neutrons in an atom.
The nucleus makes most of the an atom and in the nucleus are the protons and neutrons. Although atoms are also made up of electrons, they are so small that the mass of an electron is negligible. So the mass of an atom is determined by the protons and neutrons instead.
Example:
An oxygen atom has an atomic number of 8 and has a mass number of 16.
The atomic number indicates also th number of protons. Since the atomic number of oxygen is 8, then it has 8 protons.
So if the mas number of oxygen is 16 and the number of protons is 8, this wold mean that an Oxygen atom has 8 neutrons.
Mass Number = Protons + Neutrons
16 = 8 + n
16-8 = n
8 = n