Answer the following question given this paragraph: Q: Most tissues regulated by the autonomic nervous system receive both sympathetic and parasympathetic input from? Choices: - Chemosensory center - peristaltic neurons - parasympathetic neurons - postganglionic neurons A:
postganglionic neurons
Answer the following question given this paragraph: The cardiovascular system transports many substances to and from cells throughout the body. Q: What system transports many substances to and from cells throughout the body? Choices: - nutritional - physiological - circulatory - cardiovascular A:
cardiovascular
Q: Answer the following question given this paragraph: In 1966, Francis Crick proposed the Wobble Hypothesis which explained that the degeneracy of the genetic code is caused by the structure of the anticodon of tRNA. The anticodon is a three base sequence on the tRNA complementary to the codon on the mRNA. Each tRNA binds to a specific amino acid, but the anticodons of some tRNA molecules can bind to two or three different codons. This flexibility of the anticodon is caused by the less stringent 5' base on the anticodon loop, also referred to as the wobble base, which binds to the 3' base on the mRNA. Only the first two nucleotides are stringent and spatially confined for the decoding of the mRNA codon into an amino acid. This explains why degenerate codons often differ in the third position, as depicted in Figure above . For example, the amino acid alanine is coded by codons GCU, GCC, GCA and GCG. The wobble movement of the base in the 5' anticodon position is necessary for this degenerate capability. Q: What is used in the growth, development, functioning and reproduction of all known living organisms and many viruses? Choices: - viruses - bacteria - enzymes - dna A:
A: dna
Question: Answer the following question given this paragraph: Ionic bonds form only between metals and nonmetals. That's because metals "want" to give up electrons, and nonmetals "want" to gain electrons. Find sodium (Na) in the Figure below . Sodium is an alkali metal in group 1. Like all group 1 elements, it has just one valence electron. If sodium loses that one electron, it will have a full outer energy level, which is the most stable arrangement of electrons. Now find fluorine (F) in the periodic table Figure below . Fluorine is a halogen in group 17. Like all group 17 elements, fluorine has seven valence electrons. If fluorine gains one electron, it will also have a full outer energy level and the most stable arrangement of electrons. Q: What type of bond generally forms between a metal and non-metal? Choices: - soluble - unbreakable - horizontal - ionic A:
Answer: ionic
*Question*
Answer the following question given this paragraph: Electrons at the outermost energy level of an atom are called valence electrons. They determine many of the properties of an element. That's because these electrons are involved in chemical reactions with other atoms. Atoms may share or transfer valence electrons. Shared electrons bind atoms together to form chemical compounds. Q: What are electrons at the outermost energy level of an atom are called? Choices: - core electrons - ions - shell electrons - valence electrons A:
**Answer**
valence electrons
(Question)
Answer the following question given this paragraph: On a contour map, a circle with inward hatches indicates a depression. Q: What topographic feature does a circle with inward hatches represent on a contour map? Choices: - a lake - vegetation - a mountain - a depression A:
(Answer)
a depression