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Biology 1020 Exam 2 - Mizzou

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Biology

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tubes on the inside of the insects body

tiny air filled sacs in the lungs

any of the smallest bronchial ducts; ending in alveoli

any of the major air passages of the lungs which diverge from the windpipe.

The airway that leads from the larynx (voice box) to the bronchi

a muscular partition separating the abdominal and thoracic cavities; functions in respiration

a flap of cartilage that covers the windpipe while swallowing

chromosomes become visible as paired chromatids and the nuclear envelope disappears

chromosomes become attached to the spindle fibers and line up in the center of the cell

chromosomes move toward opposite ends of the nuclear spindle

cell begins to divide

contains only one copy of the chromosome

the chromosomes condense, and a new set of spindle fibers forms

the centromeres of the paired chromatids align along the equatorial plate in both cells

sister chromatids of every chromosome separate and begin to move towards the opposite ends of the cell

The cells pinch in the center and divide again. The final outcome is four cells, each with half of the genetic material found in the original