Why are some single-celled eukaryotes only found as haploid cells for the majority of their lifespan, whereas others are only found as diploid cells for the majority of their lifespan

The answer is c : ) hope this answered your question!

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.

Processes above and be sure to mention the movement of electrons and energy as the carbon atom moves from one reaction to another.