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In birds, the gizzard is a structure associated with which system?

Analagous structures have the same function because they are derived from a common ancestral structure.

The only chordates that have lost segmentation as adults are:

All lophotrochozoans are triploblastic protostomes.

Sea stars, and other echiniderms, are all diploblastic protostomes.

 This fungus has a sac-like sporangium that known as a(n) _________________ . 

Referring to the image below, the red arrow is pointing to which of the following structures?  

All lophotrochozoans are coleomates.

What tissue type is shown in the image below?  

In lichens photobionts recieve photosynthates.