What causes the seed coat to crack open, allowing a new plant to grow? a. the embryo getting too large b. animals gnawing on it c. the new taproot pushing against it d. water pressure inside the seed coat 2. which of the following is an advantage to dormancy? a. seeds can be dispersed farther away from a parent plant. b. it allows young plants to emerge in bitterly cold weather. c. it prevents pollination of the wrong plant species. d. it allows fruit to grow during the best seasons.