certification is undertaken by independent officially-approved certification bodies.

How would the previous sentence be correctly capitalized?
Answer: Certification is undertaken by independent officially-approved certification bodies.
figure 2: plate heat map displaying presence/absence call for a qpcrtag experiment.

How would the previous sentence be correctly capitalized?
Answer: Figure 2: Plate heat map displaying presence/absence call for a qPCRTag experiment.
most of the time the scientists investigated equilibrium strategies, the so-called nash-equilibria, due to an expectation that actors will be rational and selfish in order to maximize their payoff.

How would the previous sentence be correctly capitalized?
Answer: Most of the time the scientists investigated equilibrium strategies, the so-called Nash-equilibria, due to an expectation that actors will be rational and selfish in order to maximize their payoff.
1 and when david had gone a little way past the top of the slope, ziba, the servant of mephibosheth, came to him, with two asses on which were two hundred cakes of bread and a hundred stems of dry grapes and a hundred summer fruits and a skin of wine.

How would the previous sentence be correctly capitalized?
Answer: 1 And when David had gone a little way past the top of the slope, Ziba, the servant of Mephibosheth, came to him, with two asses on which were two hundred cakes of bread and a hundred stems of dry grapes and a hundred summer fruits and a skin of wine.