A Cuticle, because a cuticle is waxy and it repels water and covers outside of a plant. Unlike a seed, phloem, ad xylem. If you think about your nails wouldn't you think cuticle as well?
Answer:
A crayfish
Explanation:
everything else is an insect
Certain Beaches can include both Hydrospheres and terraspheres, Florida (in which I reside), would be assumed to be a Hydrospherical biome, due to its peninsular shape, but it is actually considered partially Grassland
Answer:
Buffers are chemicals that help a liquid resist changing its acidic properties when other chemicals are added that will normally cause a change in these properties.