Answer the following question given this paragraph: Some prokaryotes form structures consisting of many individual cells, like the cells in Figure below . This is called a biofilm. A biofilm is a colony of prokaryotes that is stuck to a surface. The surface might be a rock or a host's tissues. The sticky plaque that collects on your teeth between brushings is a biofilm. It consists of millions of prokaryotic cells. Q: A biofilm is a colony of prokaryotes that is stuck to what? Choices: - the middle - the bottom - skin - surface A:
surface
Answer the following question given this paragraph: The carbon monoxide molecule is correctly represented by a triple covalent bond between the carbon and oxygen atoms. One of the bonds is a coordinate covalent bond , a covalent bond in which one of the atoms contributes both of the electrons in the shared pair. Q: In what kind of bond does one atom contribute both of the electrons in the shared pair? Choices: - a valence bond - a metallic bond - an ionic bond - a covalent bond A:
a covalent bond
Q: Answer the following question given this paragraph: Water is a versatile solvent that can dissolve many ionic and polar molecular solutes to make aqueous solutions. Q: Water is a versatile solvent that can dissolve many ionic and polar molecular solutes to make what? Choices: - chloride solutions - sulfate solutions - sulfide solutions - aqueous solutions A:
A: aqueous solutions
Question: Answer the following question given this paragraph: Gases have much lower densities than liquids and solids. For example, liquid water is over 1000 times more dense than water vapor at STP. Q: Which state of matter has the lowest density? Choices: - liquids - fluids - solids - gases A:
Answer: gases
*Question*
Answer the following question given this paragraph: Bases are less common as foods, but they are nonetheless present in many household products. Many cleaners contain ammonia, a base. Sodium hydroxide is found in drain cleaner. Antacids , which combat excess stomach acid, are comprised of bases such as magnesium hydroxide or sodium hydrogen carbonate. Q: What are antacids comprised of? Choices: - gases - solids - acids - bases A:
**Answer**
bases
Answer the following question given this paragraph: The Moon is easily seen from Earth. Early astronomers used telescopes to study and map its surface. The Moon has also seen a great number of satellites, rovers, and orbiters. After all, it is relatively easy to get spacecraft to the satellite. Also, before humans could be safely sent to the Moon, many studies and experiments had to be completed. Q: What celestial object has been visited by manned spacecraft and is easily seen from earth? Choices: - venus - the Sun - Jupiter - moon A:
moon