What characteristic do the nucleus, the mitochondria, and the vacuoles of animal cells have in common?
a. they all create energy while doing their tasks.
b. they all contain some of the cell's dna.
c. they are all enclosed by membranes made of phospholipids.
d. they are all involved in producing food for the cell.

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound

What drives the atp synthase reactions that produce atp