René descartes was the first person to describe a reflex. select the best answer from the choices provided t f

Describe the potential effects, on people, of unprotected exposure to the sun. give an example of 1 new thing have you learned about the sun’s uv rays.

Avoiding excess salt and sodium may benefit a person’s health by

For my health class we were given a bunch of pictures of pregnancy tests for extra credit we have to say if they’re negative or positive. i can’t tell if this is a shadow or if it’s a faint positive