Which of the following are examples of density-independent limiting factors? Select all that apply. •A tsunami wipes out most individuals of a tidal ecosystem.
•A disease wipes out most of the individuals of a large deer population.
•An extreme drought negatively impacts a population of plants.
A population of lions c•ompetes over a limited number of prey species.

this is math not biology xd

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.

what are the options