Answer:
a.)
Explanation:
The dense cold salty water from the south sinks to the bottom of the ocean.
14C (carbon-14) can be used to date a 20,000 year old skeleton
Cirrhosis is a serious degenerative disease that occurs when healthy cells in the liver are damaged and replaced by scar tissue.
Although algae can photosynthesize, they lack other defining characteristics of plants such as true roots, stems and leaves, so they are not part of the plant kingdom.
Your mother has two X chromosomes and your father has an x and a Y chromosome