Answer: Foreshadowing is used at times in the novel to create an ominous tone and to hint at what is to come.
The correct answer is - B-Earth is presently in an inter-glacial period.
In the climate patters of our planet we have a change of glacial and inter-glacial periods.
The glacial periods are the periods when the Earth experiences much lower temperatures, freezing of big portions of the water, vast ice sheets and glaciers, and increased land area because the seas/oceans are retracting.
The inter-glacial period is the period when the temperatures rise significantly, the ice sheets and glaciers retract and are limited only to certain places, the sea/ocean waters rise, the land mass decreases, and this what the Earth is experiencing in the past 12,000 years approximately.
Answer:
B. The distance light travels in one year
Given what we know about the biological mechanisms behind anaerobic exercise, we can confirm that the production of lactate ensures a continuous supply of NAD.
In order for us to undergo any physical exercise, it is imperative that we are able to produce energy within our cells. The energy used by cells is in the form of a molecule by the name of ATP, which is produced primarily through a process known as <em>Glycolysis</em>.
This is relevant given that in order for glycolysis to happen, a key protein is required known as NAD+. Lactate is produced from pyruvate only under anaerobic conditions because these are conditions that lack oxygen which is the only other source of NAD+, therefore, pyruvate must be converted to lactic acid to make it possible to continue glycolysis and the production of ATP.
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