Which embryonic characteristic of chordates develops into structures in the head and neck in land vertebrates?

What causes darkening of the skin as melanin production increases

Identify characteristics of energy from the sun. check all that apply. almost all of the energy on earth comes from the sun. energy from the sun is known as mechanical energy. the energy in fossil fuels originally came from the sun. plants convert the energy of sunlight into chemical energy.

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.