9. Each cell in an individual mouse contains the same genes, but the mouse has many different types of cells: muscle cells, nerve cells, skin cells, etc. Briefly describe how two cells in an embryo can become two
different types of cells in an adult, even though both cells have the same DNA and genes.

__1__ is a climate cycle where the temperature of the __2__ ocean changes because of movements of air and ocean currents. during this period, the trade winds in the south __3__ , causing the __4__ water to move from the __5__ region to the __6__ region. 1) el nino or the monsoon 2) atlantic, indian, or pacific 3) reverse, strengthen, or weaken 4) cold or warm 5) eastern or western 6) eastern or western

Which of the following is true of photosynthesis? a)carbon dioxide is a reactant b)water is a product c)most reactions within this process are exothermic d)oxygen is a reactant

Rotenone is an insecticide that is toxic