MTTC Integrated Science Exam Questions With Correct Answers.
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Module
MTTC
Institution
MTTC
MTTC Integrated Science Exam Questions
With Correct Answers.
Independent Variable - answerThe experimental factor that is manipulated; the variable whose
effect is being studied. Placed on the x-axis (horizontal) on a graph.
Dependent Variable - answerThe variable that is measured in an experim...
Thermal pollution - answer✔Factories dump water at high temperatures which increases normal
water temperatures. This means the water can hold less gas, disrupting the ecosystem
Greenhouse gasses - answer✔I.e. carbon dioxide and nitrous oxide. Concentration of them is
increased by burning fossil fuels. These gasses absorb and trap heat, therefore warming the
planet
Acid ran - answer✔Sulfur and nitrous oxides converted to acids and contaminate water supplies
Prokaryotes - answer✔Single-celled organisms that do not have a membrane-bound nucleus
Flagella - answer✔Appendages on bacteria cells; used for movement
Pili - answer✔Used by bacteria cells to attach to other cells
Cell Wall - answer✔a thin membrane around the cytoplasm of a cell
Cell membrane - answer✔a phospholipid layer that covers a cell's surface and acts as a barrier
between the inside of a cell and the cell's environment
Eukaryotes - answer✔organisms whose cells contain a nucleus and other membrane bound
organelles
Nucleus - answer✔a part of the cell containing DNA and RNA and responsible for growth and
reproduction
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