Mitochondria and chloroplasts are structures found in the eukaryotic cells.
What is the theory regarding their origins?

(Choice A)
A
They developed as a prokaryotic cell membrane folded in on itself.

(Choice B)
B
They were non-living food particles that were ingested by bacteria.

(Choice C)
C
They developed from prokaryotic cells that were engulfed by the other cells.

(Choice D)
D
They originated from photosynthetic bacteria.

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

Which statements best describe the atoms of the gas neon? check all that apply

Been sitting here trying to take this test and don't know this answer! place the events of a feedback mechanism associated with body temperature in the correct order. ·nerve cells send message from skin to the brain ·body returned to normal temperature around 98.6 degrees f ·temperatures regulation center in the brain sends out signals ·body temperature exceeds 98.6 degrees f ·sweat glands throughout the body activate to cool off skin surface it is a 1 through 5 question in biology!