Which genes are present in the liver cells? A) Half the number of genes is present in the liver cells.

B) All the genes are present in the liver cells.

C) Liver cells do not require any genes.

D) Only the genes needed by the liver cells are present in those cells

Environmental impacts on evolution : mastery test

Whats one way that rocks do not follow the typical rock cycle pathway?

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.