Help me PLEASE! Choose one answer! First one to answer get Brainliest! 13.) Remnants of organs or bones that have no use now in the organisms but may have for their common ancestors…

A.) Homologous Structures
B.) Embryo
C.) Vestigial Structures
D.) Fossil Record

Vestigial structures

Explanation:

Vestigial structures serve little or no purpose for an organism. An example being the human tailbone which at one point might have been a tail, but serves no real purpose now since we're bipedal organisms

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy

if someone had the list of traits you provided