Answer: C (all cause erosion
Explanation:
Motor commands travel to muscles via Motor Neurons. This is one of two neuron types that travel on the spinal cord/brain (the other being Sensory neurons).
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Answer:
I think the electron microscope can magnify objects up to 200,000 times.
Explanation:
The pen would contain Insulin as people with diabetic problems do not have enough insulin in their body to help them break down the sugar
Answer:
Natural selection causes changes in populations because of the differential reproductive success of genetically varied individuals. That's the correct answer, for the selections that you have provided. Therefore, the correct answer in the selections you have provided would be letter B above; that's the true one!