The answer would be E)Producers
Assume as what happens in a pot of water as it get heats.. hot becomes less dense, rises and cools, becoming more dense then sinks- that's called CONVECTION
So D- is the right answer
They are called this because it's our senses. Sensory Nerves take in and communicate information about heat, cold, pressure, pain, position, and much more. They also take in information for either the outside world, or from within the body itself.
I think number one is b and number two is D.
I hope this helps!
Were formed from carbon rocks