Si el pKa de los grupos de ácido carboxílico en el ácido acetoacético y el ácido bhidroxibutírico es de 3,6 y 4,7, respectivamente, ¿qué forma (protonada o desprotonada) está presente a pH fisiológico?

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.

The third stage of cellular respiration is (2 points)

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4