the answer is c elm do to it having a saw blade edged
Answer:
pretty sure it's d. invasive species
Explanation:
the reason a species is called invasive is if it is incredibly difficult to get rid of and the population is growing out of control quickly. the characteristics that was given were likewise to the behavioral problems of an invasive species.
The answer is A. Environmental conditions are not always right to produce flowers and seeds for sexual reproduction.
Most plants are able to reproduce either way because even if the conditions aren't right for the plant, it can still make more flowers so it doesn't die out.
I hope this helps! :D
That type of relationship is known as Parasitism
