11. AB and BC
A
2x + 4
B
4
X
+
3
a. X=-1.6, AB = 0.8, BC = 1.4
c. x = 5, AB = 6, BC = 2
b. x = 5, AB = 14, BC = 8
d. x= -1.6, AB = 7.2, BC = 4.6

idn

step-by-step explanation:

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.  

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%