HELP ME SOMEBODY

Pls! plant cells and animal cells were observed under a microscope. the characteristics of two cells are listed below. cell p: does not capture sunlight cell q: has cytoplasm but no chloroplast which statement about the two cells is correct? cell q also has a cell wall. cell q also has large vacuole. cell p also has a large vacuole. cell p also has a cell membrane.

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

What is the independent variable in this investigation? mass volume sample number substance density