Which of the following does not require a medium through which to travel in word which can travel through empty space

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?

Hybrid instruments that play sounds that are part sampled and part synthesized are known as:

Which of the following are the functions of the integumentary system? yadda-yadda, the 1st answer is the brainliest. : )