The earliest life forms we know of were microscopic organisms (microbes) that left signals of their presence in rocks about 3.7 billion years old.
C) they are passed onto offspring
All of Darwin's selections are based upon the tenet that they are heritable, which is to say passed from one generation to the next
As you stated before, cellulose is found throughout the cell walls of plant cells. Cellulose makes cell walls rigid, so that would indicate that cellulose is a carbohydrate.
A cell wall. Animal cells do not have a cell wall have plants have a cell wall.
Out of the choices given, the two Middle Eastern people that can be referred to as a Semite is the Jews and the Persians. This will make the correct answer D.