Cynthia observed a cell with a pair of sister chromatids moving toward a given pole as a single unit and another cell with sister chromatids moving to opposite poles. what did she infer from
her observation?
a) the first cell is in anaphase l, and the second cell is in anaphase ll
b) the first cell is in metaphase ll, and the second cell is in metaphase l
c) the first cell is in anaphase ll, and the second cell is in anaphase l

List two new traits (structural or behavioral) that each new species of rat might demonstrate as it adapts to the conditions on two of the four islands. choose only two islands that are described in the lesson. record the island latter and the major habitat feature of the island. then list two new traits each rat subspecies might demonstrate in order to survive the habitat on that island. note: new traits should be unique to that island and be in response to that island’s habitat feature. i cannot remember islands that were names in the lesson so only answer if you have done the lesson (5.13 life science 7b) choose 2 of the islands and describe a structural and a behavioral trait for a rat on each island so 4 total answers, 2 different structurals and 2 different behaviorals, one for each rat for each island

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

In what for do plants utilize nitrogen? why do they need nitrogen?