PLZ HELP ME What are the five shared characteristics of all living things? A Cells, energy, organs, movement, communication
B. Energy, development, organs, movement, communication
C. Multicellular, photosynthesis, responses, growth, reproductio
D. Responses, cells, energy, reproduction, growth​

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?