QUESTIONS AND ANSWERS 100%
SOLVED (Newest 2025)
The experimental factor that is manipulated; the variable
whose effect is being studied. Placed on the x-axis
(horizontal) on a graph. - Correct Answers ✅Independent
Variable
The variable that is measured in an experiment. Placed on
the y-axis (vertical) on a graph. - Correct Answers
✅Dependent Variable
Must be repeatable. Possible to be disproved and capable of
change. - Correct Answers ✅Scientific theory
Random sampling is the preferred, but isn't always possible.
A large sample will yield the most accurate information. -
Correct Answers ✅Sampling and Sample Size
Only one variable should be manipulated at a time. - Correct
Answers ✅Manipulating Variables
A factor that is held constant to test the relative impact of an
independent variable - Correct Answers ✅Control variable
In most cases, 911 should be called immediately. - Correct
Answers ✅Response to Lab Accident
,MTTC Integrated Science Exam
QUESTIONS AND ANSWERS 100%
SOLVED (Newest 2025)
Do not use a fire extinguisher. Just place a watch glass or wet
towel over it to cut off Oxygen supply. - Correct Answers
✅Response to Fire in a Beaker or Flask
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. - Correct Answers ✅Guidelines for
Dissections
Store all in secured, dry area. Acids locked in separate area. -
Correct Answers ✅Storing Lab Chemicals
Traced back to ancient Greeks (i.e. Aristotle) - Correct
Answers ✅Origin of Biological Sciences
Dissected human bodies; created a book on anatomy -
Correct Answers ✅Andrea Vesalius
Father of Microscopy, first to see and describe bacteria, yeast
plants, and microscopic life found in water - Correct
Answers ✅Anton van Leeuwenhoek
Instead of a light, a beam of electrons pass through
specimen. Resolution about 1,000 times greater than light
,MTTC Integrated Science Exam
QUESTIONS AND ANSWERS 100%
SOLVED (Newest 2025)
microscope. Will kill specimen though. - Correct Answers
✅Scanning Electron Microscope (SEM)
Famous for Hook's law describing elasticity. But called a
"virtuoso", able to contribute findings to any major field in
science - Correct Answers ✅Robert Hooke
Famous for binomial system of nomenclature. Each living
organism has two names, a genus and species. Considered
father of modern ecology and taxonomy - Correct Answers
✅Carl Von Linnaeus
Discovered role of microorganisms in the cause of disease,
pasteurization, and rabies vaccine. - Correct Answers
✅Pasteur
Specific diseases caused by specific pathogens - Correct
Answers ✅Koch's Postulates
Cell is the common structural unit in plants and animals.
Proposed by Mattias Scheleiden and Schwann. - Correct
Answers ✅Cell theory
Discovered the structure of DNA was a double helix (in the
1950s). Made it possible to understand how DNA replicated
, MTTC Integrated Science Exam
QUESTIONS AND ANSWERS 100%
SOLVED (Newest 2025)
and synthesized proteins - Correct Answers ✅Watson and
Crick
- Systems, order, and organization
- Evidence, models, and explanation
- Constancy, change, and measurement
- Evolution and equilibrium
- Form and function - Correct Answers ✅Commonalities
Among all Sciences
All evidence is empirical; all evidence must be observed by
the five sense. - Correct Answers ✅Empirical Evidence
Most accepted source for information on scientific
experiments and studies - Correct Answers ✅Peer-
reviewed Journals
Chemicals in the air; include carbon monoxide, sulfur dioxide,
and chlorofluorocarbons (CFC's) - Correct Answers ✅Air
Pollution
Contaminants enter water by ground runoff or by leaching -
Correct Answers ✅Water Pollution