Study the image, which describes how rapid changes in weather conditions occur.

based on the arrows, what does the image represent?
air masses are barely moving.
air masses are colliding with each other.
jet streams are forming in the upper atmosphere.
weather conditions are remaining steady and unchanged.

Differentiation of cells changes the nucleic information. true false

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

Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? a) catalysis b) metabolism c) anabolism d) dehydration e) catabolism