2n + .5n = 10

Describe and correct any error a student may have made when solving the equation 0.15(y - 0.2) = 2- 0.5(1 - y).

$$\begin{align*} 0.15(y-0.2)&=2-0.5(1-y)\\ 0.15y-0. 3&=2-0.5+0.5y\\ 0.15y-0. 3&=1.5+0.5y\\ (100)(0.15y-0. 3)&=100(1.5+0.5y)\\ 15y-30&=150+50y\\ 15y-30-15y-150&=150+50y-15y-150\\ -180&=35y\\ -\dfrac{180}{35}&=y \end{align*}$$

State several inferences about evolution that are supported by fossil evidence.

Relate the roles of adaptation and fitness in the theory of natural selection.

Identify several factors that could limit the growth of populations.

The word radiation is derived from the Latin radius, which means "rod" or "ray." Using this information, explain the meaning of adaptive radiation.