Answer:
Eukaryotic cells arose through endosymbiotic events that gave rise to the energy-producing organelles within the eukaryotic cells such as mitochondria and chloroplasts. ... The endosymbiotic theory proposes that one organism engulfed another, and the two co-evolved together until they could not exist independently.
Explanation:
Answer:
features of living things are -
☆ they can grow and repair
☆ they can respire
☆ they can reproduce
Examples - humans , animals , etc.
hope that helps uhh :)
The difference between them is that they are active in fighting infection.
Plasma cells are active in defense during the first exposure to invaders like viruses or bacteria producing antibodies. Memory cells last longer and make a copy of the invaders. This allows an extremely rapid defense later in case of a second exposure.
They might have concluded that both protein and DNA transmitted hereditary material. The 32P was a radioisotope in DNA, and the 35S was a radioisotope in proteins. They were used to track the DNA and proteins to see if they were injected by a virus into a bacterium. <span>Hugs</span>
Yes, in the first stage. Prophase I
