Question

What is the principle that new cells arise from existing cells part of?
A.
protein synthesis
B.
an ecosystem
C.
cell theory
D.
levels of organization

Answer 1

C. cell theory

Answer 2

A substance is being examined that has been found at a crime scene. Using a chemical test, it is determined that glycogen is present in the substance. What does this mean for the investigation?
A.
The substance is from a human or animal source.
B.
The substance is the poison ricin.
C.
The substance is from a plant source.
D.
The substance is a lipid.

Answer 3

A. The substance is from a human or animal source.