D. The heat is there via convection from the sun
Answer:
Shadows are made by blocking light. Light rays travel from a source in straight lines. If an opaque (solid) object gets in the way, it stops light rays from traveling through it. This results in an area of darkness appearing behind the object. The dark area is called a shadow
The answer is prime mover
The correct answer is D) fern gametophyte bearing only antheridia.