Drag each item to the correct location. (2 points) Geocentric Model

Heliocentric Model

Options:
::
The orbits of the planets are circular,

:: Includes eight planets.

:: The Sun is at the center of the solar system.

:: The orbits of the planets are elliptical

! Includes five planets.

:: Earth is at the center
the solar system

The image shows embryos of three vertebrate classes

How do cells grow and reproduce to maintain homeostasis?

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.