Briefly summarize the four phases of mitosis and cytokinesis
What will be an ideal response?
Prophase: Chromosomes become visible as threadlike structures. As they continue to condense, they are seen as double structures, with sister chromatids joined at a single centromere.
Metaphase: Chromosomes become aligned at equator of cell.
Anaphase: Centromeres divide, and chromosomes move toward opposite poles.
Telophase: Chromosomes decondense; nuclear membrane forms.
Cytokinesis--Cleavage furrow gradually tightens and the cell eventually divides in two, distributing organelles to the daughter cells.
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Which crop plant would likely have a mutualistic relationship with Rhizobium bacteria?
A. Wheat B. Potatoes C. Corn D. Peas E. Cotton
What structure lies within the dermis?
A. nerve fibers B. keratin C. muscle fibers D. melanin
How many chambers does the frog heart have?
(a) one. (b) two. (c) three. (d) four.
The exchange of gases between an organism and its environment is known as:
a. exhalation. b. aeration. c. inhalation. d. respiration. e. ventilation