7. Phloem & xylem.
And I’m not sure about 8
The answer would be genes.
That it can send signals to diffrent people
Answer:
The most significant effect of the microbes on earth is their ability to recycle the primary elements that make up all living systems, especially carbon, oxygen, and nitrogen (N). Primary production involves photosynthetic organisms which take up CO2 from the atmosphere and convert it to organic (cellular) material.