in a single family, the ratio may or may not be half boys and half girls. When do you begin to show that an equal number of boys and girls occurs in families? explain

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

Of your good in bio kusing a series of preliminary observations; pstate a problem developed from these observations, formulate a hypothesis, design an experiment to test the hypothesis

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping