Which of the possible examples below would most likely lead to a change in the cell theory? Scientists find life on Mars that is not made of cells.

Scientists identify a cell organelle that practices the process of photosynthesis.

Scientists determine that an organism is living if it is made of twenty structurally-identical cells.

Scientists gather life from a volcano that is composed of cells which are very different from humans.

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d

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.

What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.