Answer:
Thorns and colour.
Explanation:
The thorns are there to protect the stem from being cut or wild animals trying to eat it.
The colour is there to attract insects and pollinators to come and spread pollen.
Hi lovely,
The answer you're looking for would be D) Spores
I think all of the above...
because I know they built aqueducts and sewers, so since 2 of they are correct, then all 3 must be.