1. a neuron fiber that sends a signal from your hand to your brain is called a

a. axon
b. cell body
c. mitochondriond
d. dendrite

2. at approximately what age does nerve conduction achieve maximum capacity?

a. 5
b. 10
c. 20
d. 30

3.insulin is to glucagon as

a. wet is to dry
b. walking is to running
c. morning is to afternoon
d. a key is to lock

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

cell division is not regulated in tumor cells.