Scientific Theories and Thinking
Which of the following is a scientific theory related to Earth Science?
Plate tectonics and the Giant impact theory
an __ may include a structural physiological, or behavioral trait that improves and organism's likelihood of survival and reproduction
adaptation
____ is the process of maintaining a stable internal environment
homeostasis
A scientific theory explains why something occurs, whereas a scientific law describes ____ something occurs
how
meters is the standard SI unit for-
length
A _______ is a description of what always occurs under certain conditions in nature.
scientific law
Theories basic to all life sciences include ____
the cell theory and the theory of evolution by natural selection
the theory of evolution and the cell theory are well-known scientific-
theories
A scientific _____ is a hypothesis which has stood up to repeated attempts at falsification and is supported by a great deal of data and evidence.
theory
To see the inside of specimen, ____ electron microscopy should be used
transmission
A theory is based on experiments, while a hypothesis is based on observations.
true
the hazard sign on a chemical container signifies that the contaminants are hazardous and they could enter into the soil and ground water systems
true
Scientific theories are constructed in order to explain, predict, and ______ phenomena.
understand
A scientific law answers "how" questions, whereas a scientific theory answers ______ questions.
why
Is a questioning attitude is part of what it means to think like a scientist?
yes
Is a scientific theory is generally accepted as a scientific truth?
yes
A theory stating that cells are the basic structural units of all organisms is known as the ____
Cell theory
which of the following are scientific models?
Climate models, geological models, ecosystem models, and molecular models
Sacchoaromyces cervisiae is baker's yeast. What type of organism is yeast?
Eukaryote, unicellular
Which of the following is true for the scientific theory?
Explanation supported by experiments, widely accepted as true, supported by repeatable results
Which of the following is a scientific theory related to Biology?
Germ theory of Disease
What may eventually become scientific theories?
Hypotheses
Choose the important factors that influence the evaluation of a model
Its ability to predict future observations, Its ability to explain past observations, and Its ability to control events
___ is the SI unit for thermal energy
Kelvin
Which type of microscope uses visible light and lenses to mangy objects?
Optical
What is another name of the germ theory of disease?
Pathogenic theory of medicine
____ unit is the modern form of the metric system
SI
Which of the following is a scientific theory related to Physics?
Special relativity, general relativity, and the Quantum field theory
When can a scientific theory be changed?
When new evidence is found
Which of the following are the examples of a model organism?
Yeast, Zebra fish, and nematode
Scientific theory
a broad explanation for events that is widely accepted as true
A scientist should have an open mind because scientific knowledge is always ____
changing
_____ comes from a direct, physical observation of something or a process
evidence
If only a little evidence disproves a scientific theory, the theory can still be accepted.
false
resolution is a measure of clarity of an image; it is the minimum distance three points can be separated and still be distinguished as separate points
false
What is the standard SI unit for mass?
gram
SI stand for International system of Units
true
Scientific theories are well established explanations of evidence, or explanation of an aspect of the natural world based on repeated observations.
true
Scientists use the term theory in a different way than the term is used in everyday language
true
___ is the sum of all the chemical reactions in a cell
metabolism
__ is the SI prefix that refers to thousandth
milli
Which is a non-human series that is extensively studied to understand particular biological processes and concepts?
model organism
Does the germ theory states that microorganisms are always beneficial to humans?
no
Does the tissue theory states that all living things. are made up of cells, and living cells always come from other living cells?
no
Is a hypothesis is based on evidence collected through experiments?
no
Is a scientific theory becomes a scientific law if more evidence is found to support it?
no
Is a scientific theory is not as good as a fact because it is not supported by evidence.
no
Is the scientificc theory a guess about how or why something happens?
no
One of the main aims of scientific modeling is to allow researchers to quantify their _____ about the world.
observations
atoms are arranged into molecules, then into macromolecules, which make up ____ which work together to form ___
organelles, cells
Which model plays an important role in explain, predicting and understanding phenomena?
scientific model
To collect evidence to support a hypothesis-
scientists do experiments
_____ are useful for testing, analysis or training of real-world systems or concepts.
simulations
The theory of relativity and the Quantum field are examples for ______
special relativity
Lamarck's theory of evolution was _____ by Darwin's theory of evolution by natural selection
superseded
For a scientific theory to qualify, it must bee consistent with a. pre-existing theory that is experimentally verified
true
The standard SI unit for time is second(s)
true
Which of the following describes a scientific law?
A scientific law describes what always happens under certain conditions in nature
Some living things produce more offspring than others, so they pass more genes to the next generation than others do. This process is called?
Natural selection
Which of the following is a scientific theory related to Astronomy?
The Big Bang theory
Which laboratory technique refers to the procedures that are carried out under sterile conditions?
aseptic
the basic unit of the structure and function of living things is the-
cell
simple life forms, like bacteria, do not grow and develop
false
simple life forms, like bacteria, have simple chemistry
false
the idea that certain microbes cause certain diseases is described as the _____ theory of disease
germ
Which of the following should be worn as safety equipment while carrying an investigation in the lab?
gloves, lab coat, googles
Which one of the following units of measurement would be the most appropriate in determining the mass of a banana?
grams
A scientific theory-
is based on lots of evidence
Factors important in evaluating a model include
its ability to explain past observations
____ is the SI prefix that refers to thousand
kilo
a___ is a place that has controlled conditions in which scientific research, experiments, and measurement may be carried out
laboratory
A scientific _____ is a principle which can be used to predict the behavior of the natural world.
law
Mendel's descriptions of how traits are passed from parents to their offspring are examples of scientific-
law
