The struggle for existence against other members of an organisms species is gene flow

genetic drift

Natural Selection

Competition

Which position represents spring in the southern hemisphere? a) b) c) d)

What is the correct term for living the most sustainable life you can within your current circumstances?

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?