Answer:
None of the listed answers
Explanation:
During muscle contraction, the strands of collagen stretch and the muscle shortens. The Golgi tendon organ sends impulses when the muscle lengthens. This distension deforms the terminals of the sensory fiber of type Ib, whereby the cationic channels sensitive to distension are opened. As a result, the axon becomes depolarized and action potentials are triggered that trigger the nervous impulse towards the central nervous system, through the spinal cord. The frequency of the action potential indicates the force that is converted within the muscle.
Answer:
Answered
Explanation:
In this example of research, Dr. O'Malley is obtaining informed consent from his participants as he openly told the participants to that their participation is completely voluntary and that they can stop taking part at any time. Dr. Quick is debriefing her participants.
Answer:
The answer is Executive Attention
Explanation:
Executive function is defined as the sub-function of attention which includes processes for monitoring and resolving conflicts that arise among internal processes. It is involved in the regulation of thoughts, emotions and responses. According to researches by McClelland et al (2017) and Schmitt et al (2017), it involves action planning, allocating attention to goals, error detection and compensation, monitoring progress on tasks, and dealing with novel or difficult circumstances.
Tobacco in Colonial Virginia
Contributed by Emily Jones Salmon and John Salmon
Tobacco was colonial Virginia's most successful cash crop. The tobacco that the first English settlers encountered in Virginia—the Virginia Indians' Nicotiana rustica—tasted dark and bitter to the English palate; it was John Rolfe who in 1612 obtained Spanish seeds, or Nicotiana tabacum, from the Orinoco River valley—seeds that, when planted in the relatively rich bottomland of the James River, produced a milder, yet still dark leaf that soon became the European standard. Over the next 160 years, tobacco production spread from the Tidewater area to the Blue Ridge Mountains, especially dominating the agriculture of the Chesapeake region. Beginning in 1619 the General Assembly put in place requirements for the inspection of tobacco and mandated the creation of port towns and warehouses. This system assisted in the development of major settlements at Norfolk, Alexandria, and Richmond. Tobacco formed the basis of the colony's economy: it was used to purchase the indentured servants and slaves to cultivate it, to pay local taxes and tithes, and to buy manufactured goods from England. Promissory notes payable in tobacco were even used as currency, with the cost of almost every commodity, from servants to wives, given in pounds of tobacco. Large planters usually shipped their tobacco directly to England, where consignment agents sold it in exchange for a cut of the profits, while smaller planters worked with local agents who bought their tobacco and supplied them with manufactured goods. In the mid-seventeenth century, overproduction and shipping disruptions related to a series of British wars caused the price of tobacco to fluctuate wildly. Prices stabilized again in the 1740s and 1750s, but the financial standings of small and large planters alike deteriorated throughout the 1760s and into the 1770s. By the advent of the American Revolution (1775–1783), some planters had switched to growing food crops, particularly wheat; many more began to farm these crops to support the war effort. In the first year of fighting, tobacco production in Virginia dropped to less than 25 percent of its annual prewar output.
