The direct source of energy to move the sailboat is probably wind, since wind is what pushes the sail of the sailboat, which is what propels the sailboat forward.
Hope this helps!
A. prevent cross-contamination.
The nettle animals. Corals, sea anemones and jellyfish belong to a group of animals called cnidarians (pronounced 'nid-air-e-ans'). ... With 1,048 marine species, cnidarians are one of the largest groups of invertebrates in New Zealand waters.
Answer:
If the type of food available changes, then the frequency of beak also changes.
The rate mainly effects the size of the crystals in the rock forming
