Answer the following question given this paragraph: Q: Which type of muscle fiber can sustain long contractions? Choices: - fast fibres - intense fibers - direct fibers - slow fibers A:
slow fibers
(Question)
Answer the following question given this paragraph: An example of a mutualistic relationship is between herbivores (plant-eaters) and the bacteria that live in their intestines. The bacteria get a place to live. Meanwhile, the bacteria help the herbivore digest food. Both species benefit, so this is a mutualistic relationship. The clownfish and the sea anemones also have a mutualistic relationship. The clownfish protects the anemone from anemone-eating fish, and the stinging tentacles of the anemone protect the clownfish from predators ( Figure below ). Another example of this type of symbiotic relationship is the relationship between the plover bird and the African crocodile. The tiny blackbird acts as a toothpick for the fierce crocodile, and helps by removing tiny morsels of food that are stuck between the crocodile's teeth. These food remains are the source of food for the bird. Another example is between the ostrich and the zebra. The ostrich always moves with the herd of zebras since it has a poor sense of hearing and smell, whereas the zebra has very sharp senses. The ostrich has a keen sense of sight, which the zebra lacks. Hence, these two species depend on each other to warn one another of any nearby imposing dangers. Q: Herbivores and the bacteria that live in their intestines demonstrate a two-way beneficial relationship called what? Choices: - parasitism - pragmatism - syncretism - mutualism A:
(Answer)
mutualism
Ques: Answer the following question given this paragraph: The elements of group 1 are called the alkali metals. Alkali (from the Arabic al-qili, meaning "ashes of the saltwort plant from salt marshes") was a general term for substances derived from wood ashes, all of which possessed a bitter taste and were able to neutralize acids. Although oxides of both group 1 and group 2 elements were obtained from wood ashes, the alkali metals had lower melting points. Potassium and sodium were first isolated in 1807 by the British chemist Sir Humphry Davy (17781829) by passing an electrical current through molten samples of potash (K2CO3) and soda ash (Na2CO3). The potassium burst into flames as soon as it was produced because it reacts readily with oxygen at the higher temperature. However, the group 1 elements, like the group 2 elements, become less reactive with air or water as their atomic number decreases. The heaviest element (francium) was not discovered until 1939. It is so radioactive that studying its chemistry is very difficult. The alkali metals have ns1 valence electron configurations and the lowest electronegativity of any group; hence they are often referred to as being electropositiveelements. As a result, they have a strong tendency to lose their single valence electron to form compounds in the +1 oxidation state, producing the EX monohalides and the E 2O oxides. Because they are so reactive, pure group 1 elements are powerful reducing agents that are used in lithium batteries and cardiac pacemakers. Sodium salts such as common table salt (NaCl), baking soda (NaHCO3), soda ash (Na2CO3),. Q: What word do get from the arabic al-qili, meaning "ashes of the saltwort plant from salt marshes"? Choices: - water - metals - crystals - alkali A:
Ans: alkali
(Q).
Answer the following question given this paragraph: Lipids Lipids include a diverse group of compounds that are united by a common feature. Lipids are hydrophobic ("waterfearing"), or insoluble in water, because they are nonpolar molecules. This is because they are hydrocarbons that include only nonpolar carbon-carbon or carbon-hydrogen bonds. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of lipids called fats. Lipids also provide insulation from the environment for plants and animals (Figure 2.17). For example, they help keep aquatic birds and mammals dry because of their water-repelling nature. Lipids are also the building blocks of many hormones and are an important constituent of the plasma membrane. Lipids include fats, oils, waxes, phospholipids, and steroids. Q: In what form of lipids cells store energy for long-term use? Choices: - meat - nuts - treasure - fat A:
(A).
fat
Ques:Answer the following question given this paragraph: 26.2 | Water Balance By the end of this section, you will be able to: Explain how water levels in the body influence the thirst cycle Identify the main route by which water leaves the body Describe the role of ADH and its effect on body water levels Define dehydration and identify common causes of dehydration On a typical day, the average adult will take in about 2500 mL (almost 3 quarts) of aqueous fluids. Although most of the intake comes through the digestive tract, about 230 mL (8 ounces) per day is generated metabolically, in the last steps of aerobic respiration. Additionally, each day about the same volume (2500 mL) of water leaves the body by different routes; most of this lost water is removed as urine. The kidneys also can adjust blood volume though mechanisms that draw water out of the filtrate and urine. The kidneys can regulate water levels in the body; they conserve water if you are dehydrated, and they can make urine more dilute to expel excess water if necessary. Water is lost through the skin through evaporation from the skin surface without overt sweating and from air expelled from the lungs. This type of water loss is called insensible water loss because a person is usually unaware of it. Q: Water that is lost through the skin through evaporation from the skin surface without overt sweating and from air expelled from the lungs is known as what? Choices: - dehydration - osmotic process - logical water loss - insensible water loss A:

Ans:insensible water loss
Answer the following question given this paragraph: The simple sugars form the foundation of more complex carbohydrates. The cyclic forms of two sugars can be linked together by means of a condensation reaction. The figure below shows how a glucose molecule and a fructose molecule combine to form a sucrose molecule. A hydrogen atom from one molecule and a hydroxyl group from the other molecule are eliminated as water, with a resulting covalent bond linking the two sugars together at that point. Q: During the condensation reaction of sugars what is removed, linking the two sugars? Choices: - hormones - chlorophyll - air - water A:
water