Asters: Stars of the Show in Fall ... Since wild asters generally grow to about 5 or 6 feet tall and have "weedy ... Many asters are prone to mildew and leaf ...
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asters and all the other composite flowers
Brassicaceae
cabbage, turnip; Arabidopsis, and other mustards ...
"Disasters such as earthquakes, floods, or fires may reduce the size of a population drastically, killing victims unselectively.
'[6] The earth's climate, tectonics, atmosphere, oceans, and periodic disasters invoked the primary selective pressures on all organisms, which they either adapted to, or they perished with or without leaving descendants.
These new centers radiate microtubules in star-shaped clusters known as asters.
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Drastic short-term reductions of population size caused by natural disasters, disease, or predators may result in (by chance) the survivors representing only a small portion of the original gene pool.
3. To dismiss or discharge from office; as, the President removed many postmasters.
See the note under Remove.
Origin: OF. Removoir, remouvoir, L. Removere, remotum; pref. Re- re- _ movere to move. See Move.
bottlenecks Drastic short-term reductions in population size caused by natural disasters, disease, or predators; can lead to random changes in the population's gene pool.
mitotic apparatus Collectively, the asters, spindle, centrioles, and microtubules of a dividing cell.
Polar microtubules are not attached to chromosomes but overlap each other. Asters are short microtubules that radiate from the centrosomes. The spindle apparatus can be seen on the drawing of a cell in metaphase below.
181-203 17 Confocal microscopy of the mitochondrial permeability transition in necrotic and apoptotic cell death J.J. Lemasters, T. Qian, L.C. Trost, B. Herman, W.E. Cascio, C.A. Bradham, D.A. Brenner and A.-L. Nieminen..........
 See also: Plant, Trans, Animal, Species, Organ
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