If a blood vessel has valves, it is probably
a. a vein
b. an artery
c. a venule
d. part of the lymphatic system
Ans: a. a vein
You might also like to view...
Most inherited human genetic disorders are inherited as ________ alleles.
a. dominant b. recessive c. homologous d. sex-linked
Bilateria are characterized by:
A. a plane of symmetry that forms mirror images around a vertical plane in the midline B. a plane of symmetry that forms mirror images around a horizontal plane in the midline C. a plane of symmetry around a transverse plane across the center of the body so that the front and back halves are mirror images D. a plane of symmetry that forms mirror images around an oblique plane in the midline E. a plane of symmetry that forms mirror images around any plane through the longitudinal midline of the body
Blood from the systemic circuit is first received by the heart in the
a. coronary vein. b. left atrium. c. right ventricle. d. right atrium. e. left ventricle.
In designing a drug to inhibit pox viruses, the compound should localize in the host's ________ to be MOST effective
A) nucleus B) endoplasmic reticulum C) cytoplasm D) Golgi complex