Sam is riding his bicycle, and allows his little brother Mike to ride on his rear wheel pegs.
This is an example of...
A. Mutualism +
B. Commensalism
C. Consumerism

Which of the following is one of the four conditions necessary for natural selection to occur in a population? fewer organisms are born than the habitat can support mutation does not occur organisms have identical characteristics variation is inherited

Which of the following forest management practices is best for reestablishing areas of forest?

The solution inside a plant cell is approximately a 1% saline solution and a 21% nacl solution the ,cytoplasm of a plant cell will