All of the following are shaped by learned behavior except a. shyness b. blinking c. biting one’s nails d. angry responses

The correct answer for the blank is-

B. blinking.

Learning can be described as a process of modification in the behaviour of an organism that is developed through experience or training.

Learned behavior can be developed through various means such as observation, play, classisal conditioning, sensitization etc.

In the given question, shyness, angry response, and biting of nails can shaped/modiglfi through learning.

But blinking of eyes is an innate behavior that can does not require any learning or practice.

Thus, option B) is the right answer.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

b is the correct answer