The data table lists four constellations in which star clusters are seen from earth. a star cluster is a group of stars near each other in space. stars in the same cluster move at the same velocity. the length of the arrows in the table represents the amount of redshift of two wavelengths of visible light emitted by these star clusters.

describe the evidence shown by the light from these star clusters that indicates that these clusters are moving away from earth.

a few examples of ethical concerns involving genetically engineering of humans include

-privacy of genetically tested people

- potential side effects

-long term effects

the fossil record provides evidence of a common ancestor to many species.

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.