Answer:
With few exceptions, all cells in a person’s body have the same DNA and genes. As cells divide and grow different genes are expressed, resulting in different cell types. As cells divide and grow different genes are expressed, resulting in different cell types.
Explanation:
Answer:
It is Chemical
Explanation:
Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells. Chemical digestion begins in the mouth when food mixes with saliva. Saliva contains an enzyme (amylase) that begins the breakdown of carbohydrates.
What are the theories of evolution ?
it is the same question .
Explanation: In biology it refers to absorb changes in organisms , to there descent from a common from a common ancestor , and at a technical level to a change in gene frequency over time , it can also refer to explanatory theories [ such as charles darwin 's theory of natural selection ] which explain the machanism's of evolution .
Answer:
A layer of pale,Sandy soil lacking clay and iron is likely to be found in horizon E
