The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium
Euglena are a unicellular organism. They are classified into the Kingdom Protista. They are then further classified into the Phylum<span> Euglenophyta. All euglena can make their own food by photosynthesis.</span>
Answer:
I and II
Explanation:
I. irrigation of cropland & II. harvest of biomass for energy
Answer:
photograph cells in mitosis
This isn't a question, however if you really need to wash your hands you ares is a good place to do so.