From which of the tissues labeled does a true coelom form?

A researcher noticed that in several small ponds, fish species A preyed on several smaller species, B,C,D,E,F.  When fish species A was removed from one of the ponds, prey species B and C disappeared.  What specific concept or term would be used to describe fish species A?

Animals that are segmented, have jointed appendages and an exoskeleton are members of the phylum

Which body plan represents a vertebrate animal, like a dog or cat?  

Which of the following is an example of a filter feeder in an estuary?

The structure labeled is

One advantage in bony fish is the presence of an operculum which is used to

Which of the following form a symbiotic relationship with coral?

Biogeochemical cycles:

Coral is composed of