Answer:
True.
Explanation:
in the early 1900s development of Salvarsan, an arsenic-based drug to treat syphilis.
Answer:there is a cell division as it occurs every 20min
Answer:
Migration
Explanation:
Migration refers to the movement from one region to another
Neuronal Migration refers to the movement of the neurons from their origin (brain center) to their final positions.
Example Neuron 4591 migrated to the part of brain that con trols logic whereas Neuron 4592 migrated to the region of the brain that controls emotions.
The migration can be radial or tangential.
All of the above are made using wood.
I don't know if this helps or not but you would want to know the age of the rock (absolute dating) and from there you will be able to know the age of the fossil and what caused it to die.