Which term best describes the shape of the orbits of planets in our solar system?

centripetal

spherical

circular

elliptical

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?

Which term specifically refers to an area of the body between a medial and lateral structure