Scientists were monitoring the fluctuations in the frog population at a rural pond. Because the pond was densely populated with grasses, shrubs, and small trees, they hypothesized that the green frogs would eventually be the predominant color within the population. Their observations revealed that 16% of the initial population was brown. That is 16% showed the recessive trait for color. What is q, the frequency of the homozygous recessive allele, for this population?

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

b ti isnfornopgnoernfrof

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

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.