For better understanding of the role of each part of the spinal cord, several experiments are performed on a frog. The
following table summarizes the experiments and the results.
Section of dorsal root
Section of vental root
Section of spinal nerve
Loss of sensation in the
corresponding repon
Results
Paralysis
corteponding region
Panalysis
1-Pose the problem studied.
2-Indicate the role of the dorsal root.
3-Show that the spinal nerve is a mixed nerve.
After several complete sections, there are degeneration in the
roots as shown in the figure below:
section
sections 2
sectious 3
4-Deduce the location of the cells bodies. .​

the correct answer is - ability to find a mate

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: