If the scientific name of the tiger is Panthera tigris then: to what genus do tigers belong?

How is the carbon cycle related to global warming ?

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey