Answer the following question given this paragraph: Q: Each atom has a required number of what? Choices: - matrix bonds - accretion bonds - acceleration bonds - covalent bonds A:
covalent bonds
Answer the following question given this paragraph: DNA encodes instructions for proteins. RNA copies the genetic code in DNA and carries it to a ribosome. There, amino acids are joined together in the correct sequence to make a protein. Q: Dna encodes instructions for what kind of molecules? Choices: - acids - cells - fats - proteins A:
proteins
Q: Answer the following question given this paragraph: Q: Ancient greeks mistook what simple sedentary animals for plants? Choices: - parasites - fungi - corals - sponges A:
A: sponges
Question: Answer the following question given this paragraph: Along with the skin, the integumentary system includes the nails and hair. Both the nails and hair contain the tough protein, keratin. The keratin forms fibers, which makes your nails and hair tough and strong. Keratin is similar in toughness to chitin, the carbohydrate found in the exoskeleton of arthropods. Q: What is the name of the protein that is found in hairs and nails? Choices: - cellulose - chromatin - Skin - keratin A:
Answer: keratin
*Question*
Answer the following question given this paragraph: neutrons, which are neutral in electric charge. Q: What kind of charge does a neutron have? Choices: - positive - negative - static - neutral A:
**Answer**
neutral
(Question)
Answer the following question given this paragraph: Electromagnetic waves on the left side of the Figure above are called radio waves. Radio waves are electromagnetic waves with the longest wavelengths. They may have wavelengths longer than a soccer field. They are also the electromagnetic waves with the lowest frequencies. With their low frequencies, they have the least energy of all electromagnetic waves. Nonetheless, radio waves are very useful. They are used for radio and television broadcasts and many other purposes. You can learn more about radio waves, including how they were discovered, at this URL: http://www. youtube. com/watch?v=al7sFP4C2TY . Q: What are electromagnetic waves with the longest wavelengths called? Choices: - channel waves - sound waves - infrared waves - radio waves A:
(Answer)
radio waves