What is a homologous structure?

A. same function, different anatomy

B. same anatomy, different function

C. same function and anatomy

D. different function and anatomy

B - same anatomy, different function

Explanation:

A homologous structure are structures in living things which can be the same such as an arm, but serve different purposes.

Example: A bat arm is used to fly, while human arms are used for other functions.

a tornado is in the image above.

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.