Ethan is investigating a snails response to stimuli. he put the following substances on each corner of a paper towel; syrup, lemon juice, vinegar, and water. then he put a snail in the center of the paper towel to see how it would respond. which observation is evidence of the snails response to stimuli?

a. the snail likes the water
b. the snail preferred the vinegar
c. the snail moved toward the syrup
d. the snail does not like lemon juice

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.