While exercising julie found that her. heart was beating 12times every 5 seconds how many times was it beating per min

144.

Step-by-step explanation:

Given : While exercising Julie found that her. Heart was beating 12 times every 5 seconds .

Number of times heart  beats in 1 second =

Since, 1 minute = 60 seconds

Then, Number of times heart beats in 60 second =

Hence, the number of times heart beats in 1 minute = 144.

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.

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.