Answer the following question given this paragraph: Several common human diseases are caused by fungi. They include ringworm and athlete's foot, both shown in Figure below . Ringworm isn't caused by a worm. It's a skin infection by a fungus that leads to a ring-shaped rash. The rash may occur on the head, neck, trunk, arms, or legs. Athlete's foot is caused by the same fungus as ringworm. But in athlete's foot, the fungus infects the skin between the toes. Athlete's foot is the second most common skin disease in the U. S. Q: Ringworm and athlete's foot are common human diseases caused by types of what? Choices: - viruses - multicellular bacteria - acids - fungi A:
fungi
Answer the following question given this paragraph: When organisms die, they leave behind energy and matter in their remains. Decomposers break down the remains and other wastes and release simple inorganic molecules back to the environment. Producers can then use the molecules to make new organic compounds. The stability of decomposers is essential to every ecosystem. Decomposers are classified by the type of organic matter they break down:. Q: What do decomposers release back to the environment after they break down the remains and other wastes? Choices: - carbon monoxide - unrefined waste - nematodes - simple inorganic molecules A:
simple inorganic molecules
Q: Answer the following question given this paragraph: The hint of symmetry between electricity and magnetism found in the preceding chapter will be elaborated upon in this chapter. Specifically, we know that a current creates a magnetic field. If nature is symmetric here, then perhaps a magnetic field can create a current. The Hall effect is a voltage caused by a magnetic force. That voltage could drive a current. Historically, it was very shortly after Oersted discovered currents cause magnetic fields that other scientists asked the following question: Can magnetic fields cause currents? The answer was soon found by experiment to be yes. In 1831, some 12 years after Oersted's discovery, the English scientist Michael Faraday (17911862) and the American scientist Joseph Henry (17971878) independently demonstrated that magnetic fields can produce currents. The basic process of generating emfs (electromotive force) and, hence, currents with magnetic fields is known as induction; this process is also called magnetic induction to distinguish it from charging by induction, which utilizes the Coulomb force. Today, currents induced by magnetic fields are essential to our technological society. The ubiquitous generatorfound in automobiles, on bicycles, in nuclear power plants, and so onuses magnetism to generate current. Other devices that use magnetism to induce currents include pickup coils in electric guitars, transformers of every size, certain microphones, airport security gates, and damping mechanisms on sensitive chemical balances. Not so familiar perhaps, but important nevertheless, is that the behavior of AC circuits depends strongly on the effect of magnetic fields on currents. Q: What does the ubiquitous generator use to generate currents? Choices: - inertia - water - gravity - magnetism A:
A: magnetism
Question: Answer the following question given this paragraph: Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a plasma membrane. Q: Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a? Choices: - cell wall - chloroplast - brain - plasma membrane A:
Answer: plasma membrane
*Question*
Answer the following question given this paragraph: Structure of the Heart The heart muscle is asymmetrical as a result of the distance blood must travel in the pulmonary and systemic circuits. Since the right side of the heart sends blood to the pulmonary circuit it is smaller than the left side which must send blood out to the whole body in the systemic circuit, as shown in Figure 40.11. In humans, the heart is about the size of a clenched fist; it is divided into four chambers: two atria and two ventricles. There is one atrium and one ventricle on the right side and one atrium and one ventricle on the left side. The atria are the chambers that receive blood, and the ventricles are the chambers that pump blood. The right atrium receives deoxygenated blood from the superior vena cava, which drains blood from the jugular vein that comes from the brain and from the veins that come from the arms, as well as from the inferior vena cava which drains blood from the veins that come from the lower organs and the legs. In addition, the right atrium receives blood from the coronary sinus which drains deoxygenated blood from the heart itself. This deoxygenated blood then passes to the right ventricle through the atrioventricular valve or the tricuspid valve, a flap of connective tissue that opens in only one direction to prevent the backflow of blood. The valve separating the chambers on the left side of the heart valve is called the biscuspid or mitral valve. After it is filled, the right ventricle pumps the blood through the pulmonary arteries, by-passing the semilunar valve (or pulmonic valve) to the lungs for re-oxygenation. After blood passes through the pulmonary arteries, the right semilunar valves close preventing the blood from flowing backwards into the right ventricle. The left atrium then receives the oxygen-rich blood from the lungs via the pulmonary veins. This blood passes through the bicuspid valve or mitral valve (the atrioventricular valve on the left side of the heart) to the left ventricle where the blood is pumped out through aorta, the major artery... Q: What asymmetrical organ has four chambers and, in humans, is about the size of a clenched fist? Choices: - brain - kidney - liver - heart A:
**Answer**
heart
Q: Answer the following question given this paragraph: Each muscle fiber contains hundreds of organelles called myofibrils . Each myofibril is made up of two types of protein filaments: actin filaments, which are thinner, and myosin filaments, which are thicker. Actin filaments are anchored to structures called Z lines (see Figure below ). The region between two Z lines is called a sarcomere . Within a sarcomere, myosin filaments overlap the actin filaments. The myosin filaments have tiny structures called cross bridges that can attach to actin filaments. Q: Hundreds of organelles called myofibrils, made up of two types of protein filaments, are contained in each fiber of what? Choices: - bone - hair - cartilage - muscle A:
A: muscle