Answer:
Eukaryotic cells arose through endosymbiotic events that gave rise to the energy-producing organelles within the eukaryotic cells such as mitochondria and chloroplasts.
It helps the plasma membrane to remain fluid.
Proteins and lipids exist in the membrane as well
Answer:
it might be D.
Explanation:
I honestly am going off of what I can remember in school.
1. Inflammation
2. Antibody
3.Thrombin
4. B cells are activated and release antibodies.
Answer: B:The drought decreased the grass and vegetation on the ground, leaving only vegetation on shrubs and trees above the ground. Natural selection selected for the tortoises with the domed shells and hoods.
Explanation: