When looking at the distribution of the world's biomes, there is a predictable pattern that results when starting at the equator and moving north or south (a latitudinal change). where else do we see the same sort of predictable pattern? (a) starting in an area after a disturbance and following it through time.(b) starting at the base of a mountain and climbing up to the top(c) starting at zero degrees latitude and moving east or west(d) starting at the source of a river and following it to where it ends

Amath expression is a collection of one or more terms, which are separated by the signs ( + , - , x , / ).example :   8+b8+b  or  a−3a−3in algebra, an equation is a mathematical statement with two expressions where, each expression is separated by an equal (=) sign. variables can be present on both the sides of the equality (=) sign and we use letters to denote such variables.example 1:   x=4+2x=4+2  , [here, we can observe that the variable is present only on one side of the equation].example 2:   2x+3=x+42x+3=x+4  , [here, we can observe that the variables are present on both side of the equation].

Did you know it's illegal to own only one guinea pig in switzerland?   : )