Cartilaginous fish do not contain any bones - their skeleton is made up of cartilage.
Answer:
The correct answer is: Spontaneous Recovery
Explanation:
Spontaneous Recovery refers to the phenomenon of reemergence of a response that was previously extinguished after a period of non-exposure. This concept involves learning and memory and was proposed by the Russian physiologist, Ivan Petrovich Pavlov.
This phenomenon is associated or connected with the learning procedure, known as the classical conditioning.
<u>Therefore, in the given situation the reemergence of good feelings triggered by cologne is an example of </u><u>Spontaneous Recovery.</u>
Answer:
Inferior vena cava
Explanation:
The inferior vena cava is a large vein that empties into the right atrium of the heart. It carries unoxygenated blood from the lower extremities. It also brings blood from the pelic area and the abdomen. The inferior vena cava coverges with the superior vena cava, which on the other hand, carries blood coming from upper part of the body.
Mining and usage of coals.
