Which chromosome is abnormal or carries a genetic mutation? a. 13th pair b. 21st pair c. 23rd pair d. 18th pair

Is it considered muscle s ennervation if sympathetic fibers innervate the vessels within the muscle?

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

Isotopes of the same element have differ in their