Need Help with these questions ASAP!!

6. If an apex predator enters and ecosystem, which level of the food pyramid will benefit? (1 point)
A. the one above the apex predator
B. the one below the apex predator
C. the lowest level of the food pyramid
D. the one below the apex predator’s prey

7. Parasites can kill their hosts (1 point)
A. True
B. False

8. Symbiotic relationships always benefit both species. (1 point)
A. True
B. False

9. The Hematodinium parasite becomes less of a problem for the blue crab when (1 point)
A. the crab is very young.
B. fishing is thriving in the region.
C. the crab moves to less salty water.
D. a significant percentage of the population is impacted.

10. Interference is competition (1 point)
A. among apex predators
B. among members of the same species
C. among all animals in the ecosystem
D. among different species