Answer:
Sweet taste.
Explanation:
The instructor determines that teaching was successful when the students identify that sweet taste is the most affected with aging. As we get older is harder to distinguish different flavors because the number of taste buds decreases, causing a loss on taste, this especially affects the sweet taste.
This may be a sebaceous cyst. This type of bump develops when sebaceous glands are blocked. Sebum builds up and a bump develops. This bump can feel hard to touch. Sebum is naturally produced, so there usually is not inflammation.
Answer: The frequency at which new species emerge and are lost over evolutionary time is established by the rates of speciation and extinction.