The answer is Cardiac Arrest
I think it’s B I’m not for sure
Earth’a temperature was too high for solid rock to form.
Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the lithosphere (land), hydrosphere (water), biosphere (living things), and atmosphere (air)...
I hope this helps you with biology...
---nila---
They're alive, they rely on the sun, and they require water.