Which type of organism moves nitrogen from cells of producers back to the soil. a) decomposers b) consumers c) nitrogen-fixing bacteria d) denitrifying bacteria

Examine the air pressure map. which type of line is shown on the map?

In the figure below, which letter points to the structure through which water is lost during transpiration?

Males of different species of the fruit fly drosophila that live in the same parts of the hawaiian islands have different elaborate courtship rituals. these rituals involve fighting other males and making stylized movements that attract females. what type of reproductive isolation does this represent?