Answer the following question given this paragraph: The three smallest alkanes are methane, ethane, and propane. Some hydrocarbons have one or more carboncarbon double bonds (denoted C=C). These hydrocarbons are called alkenes. http://catalog. flatworldknowledge. com/bookhub/reader/2547 - gobch04_s06_f02shows the formulas and the molecular models of the two simplest alkenes. Note that the names of alkenes have the same stem as the alkane with the same number of carbon atoms in its chain but have the ending -ene. Thus, ethene is an alkene with two carbon atoms per molecule, and propene is a compound with three carbon atoms and one double bond. Figure 4.7 Formulas and Molecular Models of the Two Simplest Alkenes. Q: Methane, ethane, and propane are three of the smallest what? Choices: - organisms - atoms - microorganisms - alkanes A:
alkanes
(Question)
Answer the following question given this paragraph: Ocean currents transfer heat from the Equator toward the poles. This moderates Earth's temperature. Q: Ocean currents transfer heat from the equator towards what locations? Choices: - continents - tropical zones - east and west - poles A:
(Answer)
poles
Ques: Answer the following question given this paragraph: A third important type of soil is laterite . Laterite forms in tropical areas. Temperatures are warm and rain falls every day ( Figure below ). So much rain falls that chemical weathering is intense. All soluble minerals are washed from the soil. Plant nutrients get carried away. There is practically no humus. Laterite soils are often red in color from the iron oxides. If laterites are exposed to the Sun, they bake as hard as a brick. Q: What causes the red color of laterite soils? Choices: - oxygen - toxins - erosion - iron oxides A:
Ans: iron oxides
(Q).
Answer the following question given this paragraph: Parasympathetic Division of the Autonomic Nervous System The parasympathetic division of the autonomic nervous system is named because its central neurons are located on either side of the thoracolumbar region of the spinal cord (para- = "beside" or "near"). The parasympathetic system can also be referred to as the craniosacral system (or outflow) because the preganglionic neurons are located in nuclei of the brain stem and the lateral horn of the sacral spinal cord. The connections, or "circuits," of the parasympathetic division are similar to the general layout of the sympathetic division with a few specific differences (Figure 15.4). The preganglionic fibers from the cranial region travel in cranial nerves, whereas preganglionic fibers from the sacral region travel in spinal nerves. The targets of these fibers are terminal ganglia, which are located nearor even withinthe target effector. These ganglia are often referred to as intramural ganglia when they are found within the walls of the target organ. The postganglionic fiber projects from the terminal ganglia a short distance to the target effector, or to the specific target tissue within the organ. Comparing the relative lengths of axons in the parasympathetic system, the preganglionic fibers are long and the postganglionic fibers are short because the ganglia are close toand sometimes withinthe target effectors. The cranial component of the parasympathetic system is based in particular nuclei of the brain stem. In the midbrain, the EdingerWestphal nucleus is part of the oculomotor complex, and axons from those neurons travel with the fibers in the oculomotor nerve (cranial nerve III) that innervate the extraocular muscles. The preganglionic parasympathetic fibers within cranial nerve III terminate in the ciliary ganglion, which is located in the posterior orbit. The postganglionic parasympathetic fibers then project to the smooth muscle of the iris to control pupillary size. In the upper medulla, the salivatory nuclei contain neurons with axons... Q: The parasympathetic system can also be referred to as the what? Choices: - badolato system - digestive system - lentivirus system - craniosacral system A:
(A).
craniosacral system
Ques:Answer the following question given this paragraph: Figure 14.5 Structures of the Ear The external ear contains the auricle, ear canal, and tympanic membrane. The middle ear contains the ossicles and is connected to the pharynx by the Eustachian tube. The inner ear contains the cochlea and vestibule, which are responsible for audition and equilibrium, respectively. Q: The cochlea and vestibul make up what part of the ear? Choices: - middle - upper - outer - inner A:

Ans:inner
Ques: Answer the following question given this paragraph: Phagocytosis , or cellular eating, occurs when the dissolved materials enter the cell. The plasma membrane engulfs the solid material, forming a phagocytic vesicle. Q: What is the term for cellular eating? Choices: - Pinocytosis - consumption - ancylosis - phagocytosis A:
Ans:
phagocytosis