Answer:
Keratinization is seen in the epidermis. Cells in the stratum corneum are essentially just bags of keratin.
A is the answer to your question. hope i helped :) the answer is A because each family can still thrive with just two kids. Same with the community.
ADP has two phosphate groups and ATP has three phosphate groups but they both have phosphate groups.
The cell theory has been proven to be true . The cell theory states that:
1.All living things are made up of one or more cells.
2.All living cells come from pre-existing cells, by division.
3.The cell is the fundamental, structural unit of all living organism.
The organismal theory on the other hand argues that during plant growth/evolution, the original cell expanded into the whole organism. This opposes the 2nd tenet of the cell theory that all living cells come from pre-existing cells by division.