This is the total number of genes of every individual in an interbreeding population

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel