I, seems to be the answer, because its not a sexual reproduction, (this occurs in cells, its not sexual reproduction, you would need the egg and sperm.
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!
Answer:
The Rats.
Explanation:
I think it would be the rats because its a common pest and who has chickens around their house?
This colored pigment is known as Hemoglobin. Hemoglobin is contained in the red blood cells of vertebrates and gives these cells their red color.