Ionly need short answers to all of these questions (i'll give brainliest to whoever answers all of them) 4. you can tell that the lytic cycle of viral reproduction is happening 5. you can tell that a feedback mechanism is negative 7. the difference between xylem and phloem 8. the stomata formed by a plant's guard cells are important because they allow the plant 9. nonvascular plants are unique 10. since plants don't have a nervous system, they rely on hormones