Answer to Question 1
Perfectly competitive markets are characterized by free entry and exit of firms. Whenever firms in a particular industry are seen to earn positive economic profits, other firms are attracted to the industry. Thus, the firms that are entering the profit-making industry bring resources from other industries where they were not fully utilized. Similarly, when an industry is incurring losses, some firms move out of the industry. This allows for the movement of resources from the less productive, loss-incurring industry to other industries.
Answer to Question 2
A
Amoeboid movement promoted by changes in the locations of actin filaments.
Two mechanisms that affect cell shape and movement.
Herniated disk. A herniated disk is a protrusion of the disk’s gelatinous center, called the nucleus
Natural Resources and Industry
Shingles effleurage with hands parallel to the spine and to the direction of movement.
Circling the forearm to create movement at the elbow.