D would be the answer to this question
ITS NOT EVEN A DOCTOR NOR A ENGINEER IT JUST DID WHAT IT WAS COMMANDED TO DO
The geosphere has four subsystems called the lithosphere, hydrosphere, cryosphere, and atmosphere. Because these subsystems interact with each other and the biosphere, they work together to influence the climate, trigger geological processes, and affect life all over the Earth.
im not sure if this is what the class is considerd but i know that it avians,aka birds
A double helix, looks like a twisted ladder.
