Florida National University Genes Hormones and Neurotransmitters Questions

1 PointA(n) inorganic compound is one that contains carbon.__________________

1. True
2. False

1 PointAll of the members of the same species occupying the same area at the same time constitute a(n):

1. population
2. biosphere
3. ecosystem
4. community
5. individual

1 PointIf you observe a cell that contains organelles, then that cell is most likely a(n) prokaryote. __________________

1. True
2. False

1 PointThe valence shell of hydrogen or helium is unstable when it contains two electrons.

1. True
2. False

1 PointOxidation occurs when an atom gains one or more electrons.__________________

1. True
2. False

1 PointConsider the aquatic insects pictured in the accompanying figure. Which characteristic of water molecules directly contributes to their remarkable “water walking” success?

1. ionic bonds
2. nonpolar covalent bonds
3. adhesive forces
4. capillary action
5. hydrogen bonds

1 PointHow can we identify a particular element?

1. By its number of electrons
2. By its amount of energy levels
3. By its number of protons
4. By its shape of valence shells
5. By its number of neutrons

1 PointAn organism that is eukaryotic is by definition:

1. belongs to domain Bacteria
2. is a protist
3. possesses a nucleus
4. possesses organ systems
5. is unicellular

1 PointA salt is a compound in which the hydrogen ion of ____ is replaced by some other cation.

1. an acid
2. a hydroxide ion
3. an anion
4. water
5. a base

1 PointInformation in living organisms is transmitted by which mechanism(s)?

1. hormones only
2. genes and hormones
3. genes, hormones, and neurotransmitters
4. genes only
5. neurotransmitters only