Biolog Practice Performance Task: Termites, Guardians of the Soil
Unit 1: Ecological Systems
PRACTICE
PERFORMANCE
TASK
1. Write three sentences about the role termites play in modifying the natural
process of the water, carbon, or nitrogen cycle. Use the following words in order.
at the beginning of your claims: although, when, if

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

c. live where it’s cold and icy

what? are the statements?

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.