An insertion mutation occured.
After the mutation, a letter was inserted, and the others remained intact. The number of letters increased by 1.
Exo means outside
So planets outside our solar system
They are living organisms. Not a very good question is there more to it
Assuming the options are: (Thalamus)
brain stem
thalamus
cerebrum
hippocampus
The thalamus is a large mass of gray matter in the dorsal part of the diencephalon of the brain with several functions such as relaying of sensory signals, including motor signals to the cerebral cortex, and the regulation of consciousness, sleep, and alertness.