Answer:
D
Explanation:
Cells are living things therefore, nonlivng objects do not have cells
Because comets are darker colored so they need light to shine on them to be seen in the dark skies of space.
Answer:Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. In humans, cells differentiate early in development to become nerve cells, skin cells, muscle cells, blood cells, and other types of cells
Explanation:
The sunlight provides energy for the plants to grow. <span>Since it is a closed system, no water would be lost, so it is not necessary to add extra water. </span>