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The geological time scale (gts) is a system of chronological measurements that relates stratigraphy to time and is used by geologist, paleontologists, and other earth scientists to describe the timing and relationships between events that have occurred throughout earth's history
( stratigraphy is the branch of geology concerned with the order and relative position of strata * a series of layers of rock in the ground * and there relation ship to the geological time scale)
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Answer:
a. disruption of mitotic spindle formation.
Explanation:
Vinblastine is a chemotherapeutic drug which is used to restrict cancer cell proliferation. During metaphase, it binds to microtubular proteins which play a very important role in mitotic spindle formation. If spindles will not form then during anaphase, the sister chromatids will not separate and mitosis will not take place. This is how hyper-proliferative cancerous cells are controlled from dividing and cancer is treated using this drug.
Answer:
D. build them up and breaks them down
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