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- 1. What role do the external structures play in an organism's chance for survival? a. What role do miscellaneous structures (where applicable) play in the organism's role for survival?Fill in the gap with correct answers: 1. Obligate anaerobes cannot grow (and usually die) when.................................is present. 2. RNA polymerase recognizes the.........region of a gene, binds to DNA and starts to unwind it. 3. When an amoeba comes near a food particle, ...............is produced around the food particle. 4. .......... transport is the movement of molecules across the membrane from an area of lower concentration to an area of higher concentration.iWhich one of the following statements BEST describes insects as biological vectors of disease? Insects in which the disease......Select one: a. develops and/or multiplies, and disease is transmitted by biting b.multiplies, and disease is transmitted by biting or by piercing and sucking c. develops and/or multiplies d. develops and/or multiplies, and disease is transmitted by piercing and sucking e. develops, and disease is transmitted by biting or by piercing and sucking ii Which of the following best describes the way that insects exploit a cadaver a. there is strong competition between species for the resource b. there is strong competition within species for the resource c. there is a gradual change over time as one species replaces another d. there is a gradual gain and loss of species over time as one set of species replaces another e. one species dominates the cadaver
- 33) Which of the following is a disadvantage of being multicellular? Greater energy needs More difficult to absorb nutrients Reproduction more complicated All of the above46. Mdm2 its own creator A. Stimulates B. Deregulates C. Destroys D. TransportsWhich of the following is NOT among the general strategies that bacteria, insect vectors, andtumor cells all use to evolve resistance to drug treatments include the following, except: a. Lengthening their telomeresb. Block drug entry into cellsc. Metabolize drugs into a less harmful compoundd. Alter the protein structure of the drug’s target within the celle. Decrease efflux of the drug
- 2. A beneficial _______ may give an organism an advantage in certain environments and lead to its survival and flourishing.1. In what type of environments can a microorganism be found? a. Which environment has many microorganisms and which has few? b. As revealed by different colony types, would there be a different species of bacteria/microorganism that can be found in any given environment? 2. In terms of the areas of the human body, how does this discrepancy in area differ in type and number of the bacteria present? a. Are the areas the same or are they different per individuals? Why? 3. How can a single environmental factor such as temperature and light source affect the number and type of colonies that can be found in the culture?The endemic plant Dichanthelium lanuginosum requires the presence of the fungus Curvularia protuberata to survive in hot environments, and the fungus in turn requires the presence of the virus CThhTV. When the fungi is absent, the plant will wilt away in hot soils. This situation involving several species whose effects are not independent of one another is an example of _____ coevolution. A. antagonistic B. specific C. escape-and-radiate D. diffuse
- When a ripe tomato is pricked with a needle a watery fluid comes out. This fluid is stored in: A Vacuole B Plastid C Cytoplasm D NucleusCells need to be attached to a basement membrane in order to divide. What property of cells is described? A. Anchorage-dependence B. Density-dependence C. Growth factor dependenceGive the correct biological term for each of the following statements: 1.A.Projection on the inner membrane of the mitochondrion B.Stack of membranous vesicles which are secretory in function C. Membrane around the vacuole D. Colourless plastids E. Pressure created by the protoplast on the cell wall
