1. Which of your everyday physical experiences tell you that this hand isn't actually holding a cloud? How did you learn that clouds are too far away to touch? (5 points)

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit