"Diver's reflex" is a response to diving in many aquatic mammals and also occurs in humans upon submersion in water. It is characterized by physiological changes that decrease oxygen consumption, such as a slowed heart rate
Which region of the heart would be directly affected by the nervous system to allow for the slowing of heart rate? A) SA node
B) AV node
C) left ventricle
D) right ventricle
A
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Which of the following is a junction between
two neurons? a. Schwann cell b. chemical synapse c. unsheathed node d. sodium gate e. all of these
The insertion of water (H+ and OH?) into an enzymatically split molecule is
a. hydrolysis. b. dehydration synthesis. c. condensation. d. cleavage. e. polymerization.
In the process of transcription, incoming RNA nucleotides are in the form of their triphosphates
__________________ Indicate whether the statement is true or false.
Who believed the species on Earth changed over time as a result of periodic great catastrophes?
A) Charles Lyell B) Jean-Baptiste de Lamarck C) Alfred Russel Wallace D) Georges Cuvier