Answer:
Its Genetic drift
Explanation:
Genetic Drift is a random decrease in genetic variation
Blood clots will do this. Cutting off blood flow while also increasing blood pressure. Also, if the viscosity (thickness of the blood) is thick which will slow down the flow and cause the body to use more effort to pump blood.
Across
1 sensory
8 neurotransmitters
10 medulla
16 neuron
29 cerebellum
21 trauma
sorry i only did some of these The Nervous System ones cause i only know about them alot even more than my class knows
