Which statement best compares how a paramecium and an amoeba obtain food? A. Both the paramecium and amoeba obtain food using pseudopods.
O B. Both the paramecium and amoeba obtain food through an oral groove.
C. The paramecium obtains food through an oral groove, while the amoeba uses pseudopods.
D. The paramecium obtains food using pseudopods, while the amoeba uses an oral groove.

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.

The volume of an unknown substance in a sealed glass jar is 50 milliliters. the volume of the jar is 200 milliliters. which state of matter could the substance be?

What is the formula of the ionic compound composed of calcium cations and chloride anions