What is the pressure at 4000 km below earths surface

Which description shows competition in an environment? an organism that feeds on some food an organism that finds a place to sleep three organisms of the same species living in an area three organisms battling over limited resources

Make a claim about the factors that cause inherited genetic variations within populations. also make a claim about the effects of mutations.

Me. henley said, “in the rat race we call life, only the strong will survive.” he may have been referring to