The correct answer should be Diffusion.
They help pump blood at a greater distance than Atria can.
Answer:
B&C
Explanation:
B explanation~
"The Kuiper belt is home to three officially recognized dwarf planets: Pluto, Haumea and Makemake. Some of the Solar System's moons, such as Neptune's Triton and Saturn's Phoebe, may have originated in the region."
C explanation~
Image result for which is the only body in the solar system without an atmosphere.
Pluto
Pluto is a dwarf planet that lies in the Kuiper Belt, an area full of icy bodies and other dwarf planets out past Neptune.
