Answer:
An aurora can be defined as southern lights, polar lights, northern lights, is type of natural light display in the sky.
It is generally seen in the high altitude regions.These are formed by the disturbance in the magnetosphere which is caused by solar winds.
These are light which appears in the sky due to the particles, mainly electron and protons that precipitate into the upper atmosphere.
Answer:
1. They lack a nucleus
4. They make their own food
6. They are prokaryotes
Explanation:
Its explain why mitochondria in animals and plastids in plants have its own DNA and double membrane. The theory postulates that this is due to a symbiotic relationship that began with the history of life when protists probably engulfed bacteria (most probably by phagocytosis). The bacteria offered energy while it was sheltered. The relationship evolved to become facultative.
The frontal lobe takes about 1/3 of the cerebral cortex.