The main factor that determines what type of plants grow in a biome is a both (a) and (b) b precipitation. c altitude. d temperature.

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Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Drug abuse will not lead to physical and psychological dependence. true or false ?