Answer:
they are expensive is the answer
Trees, plants, oxygen tank
Image result for Compare and contrast intracellular vs. intercellular communication
The key difference between intracellular and intercellular signaling is that intracellular signaling is the communication within the cell while intercellular signaling is the communication between cells. ... Also, within the cell, communication occurs between organelles and nucleus to carry out cellular functions.
Answer:
The nucleus (On the image, it's the sphere in the middle)
Answer:
animals, plants, protists, and fungi
