The conversion of energy involve many chemical reactions taking place within an organism or the environment. What is the term for the energy needed to begin one of these reactions? A. reaction energy
B. Activation Energy
C. Absorption Energy
D. Conversion Energy

I think is a because that's is the right answer

phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.