Agroup of students were surveyed to find out if they like bike riding and/or roller skating as a hobby. the results of the survey are shown below: 80 students like bike riding 20 students like bike riding but do not like skating 90 students like skating 40 students do not like bike riding make a two-way table to represent the data and use the table to answer the following questions. part a: what percentage of the total students surveyed like both bike riding and skating? show your work. (5 points) part b: what is the probability that a student who does not like bike riding also does not like skating? explain your answer. (5 points)

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.