Is the energy needed to get a reaction started: Exothermic Energy.
Activation Energy

Endothermic Energy.
Entropy Energy

According to the theory of punctuated equilibrium, at what rate does speciation occur? species change depending on the rate of natural selection. after periods of stasis, new species evolve relatively rapidly. species change slowly and eventually form new species. some species change quickly and others change slowly to balance the overall rate.

Which of the following represents a negatively charged ion? of t 7

Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”