Which of the following describes pulmonary veins?

a, return blood to the right atrium of the heart
b, transport blood rich in carbon dioxide to the lungs
c, transport oxygenated blood to the left atrium of the heart
d, split off the pulmonary trunk
e, transport oxygenated blood to the lungs

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.