Estuaries and their productive saltmarsh habitats serve as ...

[cherise1989]

Estuaries and their productive saltmarsh habitats serve as nurseries for many species. Being a nursery means that
  1.this is where most marine animals are born.
  2.animals can live there during both high and low tides.
  3.larvae and juveniles of marine species find shelter, feed, and grow rapidly there.
  4.this is where infant mortality rate is lowest.
 
Question 2

What makes this collection of organisms a community?
  1.Each organism interacts with every other organism present.
  2.It is comprised of individuals from many different species.
  3.There are no primary producers present.
  4.The organisms present can all survive periods of low tide.
 

[Tabitha_2016]

Answer to Question 1

3

Answer to Question 2

2

[cherise1989]

Wow, this really help

[gcook]

Great answer, keep it coming