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MTTC Integrated Science Exam Questions and Answers 100% Solved | Latest Update
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MTTC Integrated Science Exam Questions and Answers 100% Solved | Latest Update Independent Variable - The experimental factor that is manipulated; the variable whose effect is being studied. Placed on the x-axis (horizontal) on a graph. Dependent Variable - The variable that is measured in an...

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  • November 20, 2024
  • 40
  • 2024/2025
  • Exam (elaborations)
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©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
MTTC Integrated Science Exam

Questions and Answers 100% Solved |

Latest Update


Independent Variable - ✔✔The experimental factor that is manipulated; the

variable whose effect is being studied. Placed on the x-axis (horizontal) on

a graph.

Dependent Variable - ✔✔The variable that is measured in an experiment.

Placed on the y-axis (vertical) on a graph.

Scientific theory - ✔✔Must be repeatable. Possible to be disproved and

capable of change.

Sampling and Sample Size - ✔✔Random sampling is the preferred, but

isn't always possible. A large sample will yield the most accurate

information.

Manipulating Variables - ✔✔Only one variable should be manipulated at a

time.

,©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Control variable - ✔✔A factor that is held constant to test the relative

impact of an independent variable

Response to Lab Accident - ✔✔In most cases, 911 should be called

immediately.

Response to Fire in a Beaker or Flask - ✔✔Do not use a fire extinguisher.

Just place a watch glass or wet towel over it to cut off Oxygen supply.

Guidelines for Dissections - ✔✔Specimens should be rinsed before using.

Latex glover preferred. Avoid use of formaldehyde/dispose of correctly.

Need to provide alternative for students with moral objections to

assingment.

Storing Lab Chemicals - ✔✔Store all in secured, dry area. Acids locked in

separate area.

Origin of Biological Sciences - ✔✔Traced back to ancient Greeks (i.e.

Aristotle)

Andrea Vesalius - ✔✔Dissected human bodies; created a book on anatomy

Anton van Leeuwenhoek - ✔✔Father of Microscopy, first to see and

describe bacteria, yeast plants, and microscopic life found in water

,©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Scanning Electron Microscope (SEM) - ✔✔Instead of a light, a beam of

electrons pass through specimen. Resolution about 1,000 times greater

than light microscope. Will kill specimen though.

Robert Hooke - ✔✔Famous for Hook's law describing elasticity. But called

a "virtuoso", able to contribute findings to any major field in science

Carl Von Linnaeus - ✔✔Famous for binomial system of nomenclature.

Each living organism has two names, a genus and species. Considered

father of modern ecology and taxonomy

Pasteur - ✔✔Discovered role of microorganisms in the cause of disease,

pasteurization, and rabies vaccine.

Koch's Postulates - ✔✔Specific diseases caused by specific pathogens

Cell theory - ✔✔Cell is the common structural unit in plants and animals.

Proposed by Mattias Scheleiden and Schwann.

Watson and Crick - ✔✔Discovered the structure of DNA was a double helix

(in the 1950s). Made it possible to understand how DNA replicated and

synthesized proteins

Commonalities Among all Sciences - ✔✔- Systems, order, and

organization

- Evidence, models, and explanation

, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
- Constancy, change, and measurement

- Evolution and equilibrium

- Form and function

Empirical Evidence - ✔✔All evidence is empirical; all evidence must be

observed by the five sense.

Peer-reviewed Journals - ✔✔Most accepted source for information on

scientific experiments and studies

Air Pollution - ✔✔Chemicals in the air; include carbon monoxide, sulfur

dioxide, and chlorofluorocarbons (CFC's)

Water Pollution - ✔✔Contaminants enter water by ground runoff or by

leaching

Thermal pollution - ✔✔Factories dump water at high temperatures which

increases normal water temperatures. This means the water can hold less

gas, disrupting the ecosystem

Greenhouse gasses - ✔✔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 - ✔✔Sulfur and nitrous oxides converted to acids and contaminate

water supplies

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