Chapter 1: The Study of Life Flashcards

1
Q

Adaptation

A

Inherited characteristic of a species that develops over time in response to environmental factor, enabling the species to survive.

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2
Q

Biology

A

Science of life; examines how living things interact, how systems function, and how they function at a molecular level.

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3
Q

Biotic factor

A

Any living factor in an organism’s environment

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4
Q

Development

A

Changes an organism undergoes in its lifetime before reaching its adult form.

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5
Q

Energy

A

Ability to do work; energy cannot be created or destroyed, only transformed.

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6
Q

Evolution

A

Hereditary changes in groups of living organisms over time.

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7
Q

Growth

A

Process that results in mass being added to an organism; may include formation of new cells and new structures.

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8
Q

Homeostasis

A

Regulation for organism’s internal environment to maintain conditions needed for life.

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9
Q

Organism

A

Anything that has or once had all the characteristics of life.

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10
Q

Organization

A

Orderly structure shown by living things

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11
Q

Reproduction

A

Production of offspring

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12
Q

Response

A

Organism’s reaction to a stimulus

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13
Q

Species

A

Of organisms that can be interbreed and produce fertile offspring

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14
Q

Stimulus

A

Any change in an organism’s internal or external environment that causes the organism to react

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15
Q

Analyze

A

Interpret

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16
Q

Accuracy

A

How close a group of measurements are to the real or accepted value

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17
Q

Bias

A

Particular preference of point of view that is personal, rather than scientific

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18
Q

Bioethics

A

Study of controversial issues that develop as a result of a discovery made in biology

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19
Q

Conclusion

A

A summary of the results in an investigation and what they mean

20
Q

Constant

A

A factor that remains fixed during an experiment with the independent and dependent variables change

21
Q

Control group

A

In a controlled environment, the group not receiving the factor being tested

22
Q

Data

A

Quantitative or qualitative information gained from scientific investigation

23
Q

Dependent variable

A

Factor being measured in a controlled environment; it’s value changes because of changes to the independent variable

24
Q

Error

A

The difference between the measured value and the real value

25
Experimental group
Procedure performed in a controlled setting to test a hypothesis and collect precise data
26
Field study
Scientific study that takes place in a natural setting
27
Hypothesis
Tested explanation of a situation
28
Independent variable
The one factor that can be changed in a controlled environment; is the factor tested and affects the experiment outcome
29
Inference
Assumption based on prior experience
30
MSDS
Material Safety Data Sheets used in the lab explaining scientific hazards for all lab substances
31
Objective
Based on fact and not influenced by personal feelings, prejudices, or interpretations.
32
Observation
Orderly, direct information gathered about a natural phenomenon
33
Peer review
A process in which the procedures use during an experiment may be repeated and the results are evaluated by scientists were in the same field or conducting similar research
34
Precision
Refers to how close a group of measurements are to one another
35
Pseudoscience
Areas of study that tried to imitate science, often driven by cultural or commercial goals
36
Qualitative data
Include descriptions that are made strictly from observations
37
Quantitative data
Include numerical values obtained by measuring
38
Safety symbol
Logo representing us specific danger such as radioactivity, electrical or biological hazard, or irritants that may be presented in the lab activity or field investigation
39
Science
A body of knowledge based on the study of nature
40
Scientific inquiry
The planned and of the natural world
41
Scientific method
A series of problem-solving procedures that might include observations, forming a hypothesis, experimenting, gathering and analyzing data, and drawing conclusions
42
SI
System of measurement used by scientists, abbreviation of the International System of Units
43
Trial
Each repetition of an experiment
44
Unbiased
To be objective, impartial, or fair
45
Variable
Any factor that can affect the result of an experiment
46
Abiotic factor
Any nonliving factor in an organism's environment, such as soil, water, temperature, and light availability.