According to piaget's theory of cognitive development, which of the following is true of children in the concrete operational stage? a. they center on the motives of wrongdoers as well as on the amount of damage done when assigning blame. b. they have thoughts that generally involve abstract ideas rather than objects that are tangible in nature. c. they attribute life and consciousness to inanimate objects. d. they cannot center on two dimensions of a problem at once

The location of the water table is subject to change. select the best answer from the choices provided ot of

Considering the yellow and green pea color phenotypes studied by gregor mendel: a. what is the biochemical function of the protein that is specified by the gene responsible for the pea color phenotype? (1 point) b. a null allele of a gene is an allele that does not specify (or encode) any of the biochemical function that the gene normally provides (in other words, either no protein at all or only non-functional protein is produced from it). of the two alleles, y and y, which is more likely to be a null allele? (1 point) c. in terms of the underlying biochemistry, why is the y allele dominant to the y allele? (2 points) d. why are peas that are yy homozygotes green? (1 point) e. the amount of protein produced from a gene is roughly proportional to the number of functional copies of the gene carried by a cell or individual. what do the phenotypes of yy homozygotes, yy heterozygotes, and yy homozygotes tell us about the amount of sgr enzyme needed to produce a yellow color? explain your reasoning. (2 points)

Which of the following is not a type of epithelial cell