Answer: Gravitational lensing
Explanation: The arc that was seen around the galaxy by the scientist was caused by gravitational lensing; this is when a light dip and curves in the presence of huge objects.
Gravitational lensing can be simply refered to as a phenomenon where a gravitational field is created by a huge matter (cluster of galaxies) in space which distort and magnifies the lights coming from another huge matter (cluster of galaxies) from a distance but on thesame line of sight. (causing a formation of arcs of light around the huge object).
B, Rhizoids.
That's the only one that won't help you in a tough spot!
Answer:
The fish is sick or its cold or people have C O V I D
Explanation:
is prokaryotic, one celled organisms, and can be both harmful and good to the body