What constitutes the ‘working’ of a technology?

Closure

What was the connection between tool-making and the brain development of early humans?

Which of the following muscles is the main extensor of the stifle joint, located in the cranial part of the thigh region, and has four heads which insert on the tibia?

The muscular middle layer of the heart is called the:

Which of the following organs lacks pain receptors?

Which muscle extends from the distal end of the scapula to the proximal end of the radius and flexes the elbow joint?

Which type of nerve conducts nerve impulses toward the CNS?

Which of the following stimulates gastric glands to secrete hydrochloric acid and digestive enzymes?

Functions that an animal does not have to control consciously, such as peristalsis in the intestines, are influenced by the: