Answer:
Have different numbers of neutrons
Explanation:
Isotopes of an element have different atomic numbers because thy differ in neutron number even though proton number remains the same across the isotopes. The mass number is the summation of the proton and neutron number. Phosphorus has approximately 23 isotopes whose mass number range between 25 and 47. Only ³¹P is stable.
Osmosis in the cell vacuole because the difference of concentrations
outside / inside the cell
If you were studying climate change in general. The answer would be the last one which is ecosystem because it’s the study of the environment
Set point is the genetically influenced can individual weight range for an individual; it is maintained by biological mechanisms that regulate food intake, fat reserves, and metabolism. This is the weight range in which the body is programmed to function optimally. According to the set point theory one's body will fight to maintain that weight range.
Nucleus and ribosome are the correct answers.