Animals from Phylum Annelida use this structures for excretion

The swim bladder of bony fishes 

Leeches produce an anticoagulant substance that prevents clot formation and allows continuous flow of blood even after leech has detached from the tissue that it was feeding on, this substance is called________

Mammalian eccrine glands produce 

This sponge has a _________ body plan.   

The fossil that supports the evolution of birds from dinosaurs is 

Currently, the representative transitional fossil between fishes and amphibians (or water and land) is 

Which of these statements is FALSE regarding coral bleaching?

Sharks, skates and rays are members of the vertebrate group known as 

Animals that belong to the Class Agnatha that produce large amount of slime as a defense mechanism are________