Agriculture is a field where modern technology can severely increase yields of crops, increase the speed at which crops grow, and increase the speed at which crops can be harvested, requiring fewer man hours to complete a harvest. First, to increase crop yields, farmers can acquire genetically modified crops. While over time, humans have been able to breed crops to grow bigger and bigger, genetically modified crops are a much quicker solution to get bigger yields. The DNA of a seed is modified so corn for example can grow bigger, but there is the possible downside of mutation. As for the speed at which crops grow, genetic modification is also the answer. Finally, to increase the speed at which crops can be harvested, farmers use several tools, depending on the crops they are harvesting. For corn, farmers use grain combines, vehicles that separate the grain from its stalks. For cranberries, farmers fill the field with water, causing them to rise, and they use mechanical pickers to get them. Simply put, depending on the job at hand, a machine probably exists to complete that job. This decreases the time spent harvesting crops, and therefore decreases the amount of employment required to complete a harvest.
Answer: Hello, the answer is guitar or fiddle!
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The correct answer is C. Theory.
Answer: First Question.
A. PARASYMPATHETIC BRANCH
Second Question (Question 3)
D. THE MOLECULAR GATES OPEN TO ALLOW SODIUM IONS INTO THE NEURON
Explanation:
PARASYMPATHETIC BRANCH
The Parasympathetic Nervous which at times is referred to as the "rest and digest" system is one of 3 divisions in the Autonomic Nervous System.
It conserves energy as it slows the heart and increases intestinal and gland activity. It essentially takes over when one relaxes from an exciting ordeal.
ACTION POTENTIAL
During an Action Potential, a part of the neural membrane/ molecular gates open up to allow positively charged ions inside the cell and negative ones out.
With sodium being a positive ion, channels open up and positive sodium cells surge into the cell in preparation for an electrical signal being sent down the axon once a threshold has been reached.
Answer:
The answer is construct validity.
Explanation:
Construct validity is described as the degree in which a study<em> actually</em> measures what it claims to be measuring. A well-designed research will ideally have high construct validy, while a poorly designed one may confound the variables and result in measuring a different aspect.
For example, if a researcher tries to find which of two perfumes is more attractive to customers, <u>but uses different shaped or coloured bottles</u>, it's possible that the test will lack construct validity (the bottles may affect the customers' opinions).
