Answer:
-throw in the towel
abandon a struggle;admit defeat
This is the rhyme scheme in this poem: ABBAABBACDCDCD.
What this means is that each letter which is repeated rhymes with each other. So A refers to lines 1, 4, 5, and 8, which all rhyme. B refers to lines 2, 3, 6, and 7, which all rhyme. C refers to lines 9, 11, and 13, which all rhyme. D refers to lines 10, 12, and 14, which all rhyme.
U didn't mention the following?!?!
Bio means life
Geo means earth
Chemical is a substance produced or used by chemistry.
And cycle is a series of events that are regularly repeated in the same order.
There are more than one definitions if the last two but I picked the ones I thought were best. This is my guess. Hope I helped!