Answer:
The correct answer is option A. "Culture B will have more colonies on the histidine-minus plate than culture A".
Explanation:
In this example, Culture B is a culture of E. coli that has been exposed to a mutagenic agent, therefore it has the potential of developing bacteria that by chance, is able to live in a medium lacking histidine. On the other hand, Culture A is the same E. coli culture but without the exposure to the mutagenic agent. The expected result is that Culture B will have more colonies on the histidine-minus plate than culture A, illustrating that a mutagenic agent can produce E. coli able to reproduce in a histidine-minus plate.
Hi there.
This is known as atherosclerosis.
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Answer:
Thoracic aorta.
Explanation:
Aneurysm may be defined as outward swelling or bulging weak spot on the walls of the blood vessels. Aneurysm may also initiate the clot formation or the condition of the embolization.
Thoracic aorta aneurysms is mainly responsible for the dyspnea and difficulty in swallowing known as dysphagia. This condition in cerebral vessels is mainly responsible for the headache and in renal arteries can cause flank pain.
Thus, the correct answer is option (D).
Answer:
d
Explanation:
The use of fertilizers is the leading cause of eutrophication. The use of fertilizers, especially nitrate and phosphate fertilizers on farms, lawns, and golf courses, result in the accumulation of phosphate and nitrate in the nearby water body sources
The existence of an Individual human being or animal