Answer:
18. Which four body systems interact to allow a person to sneeze:
F. Muscular, immune, nervous, respiratory.
Don't really know the answer for the second one, sorry <33
Answer:Ecological succession is the process that describes how the structure of a biological community (that is, an interacting group of various species in a desert, forest, grassland, marine environment, and so on) changes over time. The structure of this community becomes more complex as new species arrive on the scene.
Explanation:
Pro-won’t spread
Con-there could still be some left of it. Not all viruses can be destroyed completely. Does that make sense?
the correct answer is the first one. density = mass / volume.
i hope this helped!