Humans are the definitive host for which is a type of humans are the definitive host for which is a type of plasmodium; cestode taenia solium; roundworm echinococcus granulosus; tapeworm taenia saginata; tapeworm

The answer to this question would be: D. Taenia saginata; tapeworm

Taenia saginata is also known as beef tapeworm because it can infect cattle. The worm that infects the cattle can travel into their muscle and transform into infective larvae. A human can be infected by taenia saginata if they eat uncooked beef meat that was infected by the worm. 

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.

The answer to your question is vagina