Answer: The answer is C: Axons make up a majority of the matter in a nerve.
Explanation:
Nerves are cells of the brain and nervous system called Neurons. They make up the neurons and transmit messages from one part of the body to another.
Axons are long projections of a neuron which conduct electrical impulses known as action potential away from the nerve cell body.
Axons do not make up majority of the matter in a nerve because the length of axon branches are different from one neuron to another. They differ in length from about 0.1 micrometers to 2meters and many neurons do not have axons.
Answer:When we draw a phylogenetic tree, we are representing our best hypothesis about how a set of species (or other groups) evolved from a common ancestor^1
1
start superscript, 1, end superscript. As we'll explore further in the article on building trees, this hypothesis is based on information we’ve collected about our set of species – things like their physical features and the DNA sequences of their genes.
Explanation:
The study of earthquakes is seismology. Scientists (seismologists) use instruments to record the strength of earthquakes in an area. The instrument that is used to measure seismic waves is called seismograph. <span>It records the shaking of the Earth. </span>The size of an earthquake is measured with its magnitude and intensity.
