Answer the following question given this paragraph: Magma that cools underground forms intrusions ( Figure below ). Intrusions become land formations if they are exposed at the surface by erosion. Q: What does magma that cools underground form? Choices: - chambers - new crust - fluctuations - instrusions A:
instrusions
(Question)
Answer the following question given this paragraph: Binary fission in various single-celled organisms (left). Cell division is a relatively simple process in many single-celled organisms. Eventually the parent cell will pinch apart to form two identical daughter cells. In multiple fission (right), a multinucleated cell can divide to form more than one daughter cell. Multiple fission is more often observed among protists. Q: Where is multiple fission more often observed? Choices: - among multi-celled organisms - among animals - among vertebrates - among protists A:
(Answer)
among protists
Ques: Answer the following question given this paragraph: Gypsum, with its rose-like structure, is a chemical sedimentary rock. Q: What kind of rock is gypsum? Choices: - basalt - igneous - metamorphic - sedimentary A:
Ans: sedimentary
(Q).
Answer the following question given this paragraph: The internal resistance r can behave in complex ways. As noted, r increases as a battery is depleted. But internal resistance may also depend on the magnitude and direction of the current through a voltage source, its temperature, and even its history. The internal resistance of rechargeable nickel-cadmium cells, for example, depends on how many times and how deeply they have been depleted. Q: As a battery is depleted what happens to its internal resistance? Choices: - stagnates - changes - reduces - increases A:
(A).
increases
Ques:Answer the following question given this paragraph: Hadrons and Leptons Particles can also be revealingly grouped according to what forces they feel between them. All particles (even those that are massless) are affected by gravity, since gravity affects the space and time in which particles exist. All charged particles are affected by the electromagnetic force, as are neutral particles that have an internal distribution of charge (such as the neutron with its magnetic moment). Special names are given to particles that feel the strong and weak nuclear forces. Hadrons are particles that feel the strong nuclear force, whereas leptons are particles that do not. The proton, neutron, and the pions are examples of hadrons. The electron, positron, muons, and neutrinos are examples of leptons, the name meaning low mass. Leptons feel the weak nuclear force. In fact, all particles feel the weak nuclear force. This means that hadrons are distinguished by being able to feel both the strong and weak nuclear forces. Table 33.2 lists the characteristics of some of the most important subatomic particles, including the directly observed carrier particles for the electromagnetic and weak nuclear forces, all leptons, and some hadrons. Several hints related to an underlying substructure emerge from an examination of these particle characteristics. Note that the carrier particles are called gauge bosons. First mentioned in Patterns in Spectra Reveal More Quantization, a boson is a particle with zero or an integer value of intrinsic spin (such as s = 0, 1, 2, . ), whereas a fermion is a particle with a half-integer value of intrinsic spin (. Q: What are particles that feel the strong nuclear force called? Choices: - bosons - mesons - baryons - hadrons A:

Ans:hadrons
Answer the following question given this paragraph: Urea Cycle The urea cycle is a set of biochemical reactions that produces urea from ammonium ions in order to prevent a toxic level of ammonium in the body. It occurs primarily in the liver and, to a lesser extent, in the kidney. Prior to the urea cycle, ammonium ions are produced from the breakdown of amino acids. In these reactions, an amine group, or ammonium ion, from the amino acid is exchanged with a keto group on another molecule. This transamination event creates a molecule that is necessary for the Krebs cycle and an ammonium ion that enters into the urea cycle to be eliminated. In the urea cycle, ammonium is combined with CO2, resulting in urea and water. The urea is eliminated through the kidneys in the urine (Figure 24.18). Q: The urea cycle, a set of biochemical reactions that produces urea from ammonium ions to prevent toxicity, occurs to some extent in the kidney, but primarily in what organ? Choices: - spleen - skin - colon - liver A:
liver