Whats a good hypothesis for lisa simpsons experiment "does rogooti affect the speed of hair growth? " (ill provide more information if needed)

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

In which state was more than 100 billion tons of coal mined in 2005?