The lateral geniculate nucleus and the medial geniculate nucleus are found in the , an area of the brain which serves as a gateway between the sense organs and primary sensory cortex. psych

Thalamus

Explanation:

The Lateral Geniculate Nuclei which is a relay center in the Thalamus for visual Pathway and the Medial Geniculate nucleus which deals with the auditory pathways are both Thalamic Nuclei.

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

cell/ tissue/ organ/ organ system/ body