If the tubes of the tracheal system in insects were longer, this would a. allow oxygen to reach the cells faster b. slow down the rate of diffusion c. leave room for a ventilation system d. cause oxygen to reach the cells more slowly

answer; i believe the correct answer is (data); /// good luck

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.