Please help! I only 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 because...

5. You can tell that a feedback mechanism is negative because...

7. The difference between xylem and phloem is...

8. The stomata formed by a plant's guard cells are important because they allow the plant to...

9. Nonvascular plants are unique because...

10. Since plants don't have a nervous system, they rely on hormones to...