Analyze the image below and answer the question that follows. A horizontal neuron. The large, leafy branches on the left are labeled 1. The large body on the left is labeled 2. The chain between the sides is labeled 3. The center of each link is labeled 4. The smaller branches on the right are labeled 5.
Which line is pointing to the myelin sheath?
A.
1
B.
2
C.
3
D.
4

Most energy in an ecosystem comes originally from_

Drag each item into the proper state of matter category.

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system