Hat is the horizontal line present across the front teeth of this skeleton and what does it represent?

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d. a round-trip ride to school and back

Aplant may open end close its stomata to prevent excess water loss and maintain

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale