When returning from sea, a green navigational buoy should be passed in and always kept on the port side of the vessel.
True, they also would have a trading system
Answer:
Kin selection or reciprocal altruism
Explanation:
- reciprocal altruism is an organism that acts to temporarily reduce its fitness by increasing the fitness of another organism, with the expectation that other organisms will do the same.
- In Kin Relative selection is the place where a close relative of an organism protects related species
