Answer the following question given this paragraph: Sponges are aquatic invertebrates that make up the phylum Porifera. The word porifera means pore-bearing. The phylum is aptly named. As you can see from Figure below , a sponge has a porous body. There are at least 5,000 living species of sponges. Almost all of them inhabit the ocean, living mainly on coral reefs or the ocean floor. Q: What does the term porifera means? Choices: - poreless - pore-clogging - pore - signifying - pore-bearing A:
pore-bearing
(Question)
Answer the following question given this paragraph: In Chapter 2 "Molecules, Ions, and Chemical Formulas" and Chapter 5 "Energy Changes in Chemical Reactions", you were introduced to several structural units that chemists use to classify organic compounds and predict their reactivities. Thesefunctional groups, which determine the chemical reactivity of a molecule under a given set of conditions, can consist of a single atom (such as Cl) or a group of atoms (such as CO2H). The major families of organic compounds are characterized by their functional groups. Figure 24.1 "Major Classes of Organic Compounds" summarizes five families introduced in earlier chapters, gives examples of compounds that contain each functional group, and lists the suffix or prefix used in the systematic nomenclature of compounds that contain each functional group. Q: How are the major families of organic compounds characterized? Choices: - Their optic groups - their visual groups - their thermal groups - their functional groups A:
(Answer)
their functional groups
Ques: Answer the following question given this paragraph: The voltage of a voltaic cell can be determined by the reduction potentials of the half reactions. Q: The voltage of a voltaic cell can be determined by the reduction potentials of what? Choices: - full reactions - thermal reactions - old reactions - half reactions A:
Ans: half reactions
(Q).
Answer the following question given this paragraph: The gene theory states that the characteristics of living things are controlled by genes. Q: Which theory states that the characteristics of living things are controlled by genes? Choices: - string theory - creationism - order theory - gene theory A:
(A).
gene theory
Ques:Answer the following question given this paragraph: Smooth muscle is found in the walls of other internal organs such as the stomach. It isn't striated because its muscle fibers are arranged in sheets rather than bundles. Contractions of smooth muscle are involuntary. When smooth muscles in the stomach contract, they squeeze food inside the stomach. This helps break the food into smaller pieces. Q: What type of muscle is found in the walls of other internal organs such as the stomach? Choices: - Fiber Muscle - inorganic muscle - Tube Muscle - smooth muscle A:

Ans:smooth muscle
Answer the following question given this paragraph: To figure out how the solar system formed, we need to put together what we have learned. There are two other important features to consider. First, all the planets orbit in nearly the same flat, disk-like region. Second, all the planets orbit in the same direction around the Sun. These two features are clues to how the solar system formed. Q: All planets exhibit the same or nearly the same direction and shape of what path around the sun? Choices: - revolution - ellipse - nucleus - orbit A:
orbit