1. describe the simple experiment to show speciation after just 8 generations: 2. to start the process of speciation, first there has to be some sort of: a. name the three options: 3. eventually this creates reproduction isolation, where you eliminate 4. geographic isolation: isolation due to where you a. allopatric: two groups that live in b. sympatric: live in the same c. describe the example of allopatric speciation: meadowlarks d. describe the example of sympatric speciation: plants have mistakes in e. pre-zygotic isolation: i. temporal – why don’t the toads normally breed together even though they could make fertile offspring

but there is no

i guess you forgot putting it.

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.