Because some plants can be some type of medicines and we need those. Also some animals use it to keep them alive and if that plant becomes extinct so can the animal then ruin how our ecosytem runs.
Answer:
1. False
2. -----
3. False
4. False
5. True
I'm not sure of the 2nd question
Hope it helps:)
Bryophytes are non vascular plants which include, mosses, liverworts and hornworts. They are seedless and lack specialized water conducting tissues.
Vacular plants are those plants that use specialized tissues to transport food and water to all parts of the plant. They have a root system, vascular system and also a shoot system. The dominant stage of the life cycle in vascular plants is the sporophyte.