Which statements best describe shared characteristics? check all that apply. shared characteristics always exist in the common ancestor and in the modern organism. shared characteristics never exist in the common ancestor or in the modern organism. the more characteristics organisms share, the more closely related they are. the fewer characteristics organisms share, the more closely related they are. shared characteristics can exist among organisms that belong to different species. shared characteristics only exist among organisms that belong to the same species.

The statements that best describe shared characteristics are:

The more characteristics organisms share, the more closely related they are.

Shared characteristics can exist among organisms that belong to different species.

Explanation:

Evolution is a process which explains how traits are changed over time. It explains the similarities among different organisms based on their evolutionary history. According to the theory of evolution, the more the similarities in traits of different species, the more they are similar.

Evolution also explains that organisms that belong to different species can have shared characteristics because they might have a evolved from a common ancestor in the past.

A,C,D

Explanation:

a. to encourage apoptosis

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.