Epigenetics are variations in gene expression that does not contain
changes to the principal DNA sequence. Therefore, it is a alteration in
phenotype without a modification in genotype. With this, all traits
are considered epigenetic, the production of genetic and non-genetic effects,
begins with methylation at conception, which will then continue throughout the
life.
Answer:
Continental drift
Explanation:
Alfred Wagener told about continental drift. He said that continents were a single land mass called Pangaea. They were separated and relocated in the form of different continents. The drifting happens due to the movement of tectonic plates above the magma. As a result, the land mass was broken down into different landforms. These broken parts were carried slowly and form the continents. The continents are now also moving slowly
The movement of molecules from a high concentration to a low concentration is called:
diffusion
Electrons have a negative charge so when a element looses its electrons it will have a positive charge
