Invitation to Biology Flashcards

1
Q

The scientific study of life

A

Biology

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2
Q

Fundamental building block of all matter

A

Atom

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3
Q

An association of two or more atoms

A

Molecule

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4
Q

Unique properties of life emerge from the interactions of these components

A

Cell & Organism

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5
Q

Smallest unit of life

A

Cell

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6
Q

An individual; consists of one or more cells

A

Organism

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7
Q

Group of individuals of a species in a given area

A

Population

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8
Q

All populations of all species in a given area

A

Community

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9
Q

A community interacting with its environment

A

Ecosystem

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10
Q

All regions of Earth that hold life

A

Biosphere

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11
Q

All living things have similar characteristics

A

Require ongoing inputs of energy and raw materials
Sense and respond to change
Pass DNA to offspring

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12
Q

Organisms Require ____ and _____

A

Energy and Nutrients

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12
Q

Organisms Require ____ and _____

A

Energy and Nutrients

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13
Q

The capacity to do work

A

Energy

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14
Q

Substance that is necessary for survival, but that an organism can’t make for itself

A

Nutrient

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15
Q

Make own food using energy and simple raw materials from nonbiological sources
Example: photosynthesis in plants

A

Producers

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16
Q

Obtain energy and nutrients by feeding on other organisms
Example: animals

A

Consumers

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17
Q

Process by which an organism keeps its internal conditions within a range that favors survival by sensing and responding to change

A

Homeostasis

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18
Q

Organisms ___, ______, and _______

A

grow, develop, and reproduce

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19
Q

Increase in size, volume, and number of cells in multicelled species

A

Growth

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20
Q

Process by which the first cell of a new individual becomes a multicelled adult

A

Development

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21
Q

Process by which individuals produce offspring

A

Reproduction

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22
Q

Transmission of DNA to offspring

A

Inheritance

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23
Q

Carries hereditary information that guides development and other activities
Source of life’s diversity

A

DNA (deoxyribonucleic acid)

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24
Scope of variation among living organisms
Biodiversity
25
Organisms can be grouped based on whether they have a _____
Nucleus
26
Saclike structure containing cell’s DNA
Nucleus
27
Single celled organisms in which DNA is not contained in a nucleus
Prokaryotes, specifically Bacteria and Archaea
28
Most numerous organisms on Earth
Bacteria
29
More closely related to eukaryotes than to bacteria
Archaea
30
Organisms whose DNA is contained within nucleus
Eukaryotes
31
Simplest eukaryotes with great diversity
Protists
32
Eukaryotic consumer that breakdown food externally
Fungi
33
Usually a multicelled, photosynthetic producer
Plant
34
Multicelled consumer that ingest food or juices of other organisms
Animal
35
Practice of naming and classifying species
Taxonomy
36
Characteristics of life
cellular organization reproduction metabolism homeostasis hereditary response to stimuli growth & development adaption through evaluation
37
Unit of classification
Taxon
38
Taxonomic Classification
Domain Kingdom Phylum Class Order Family Genus Species
39
A group of organisms that share a unique set of traits
Taxon
40
Three-domain Classification
Bacteria, Archaea, Eukarya
41
Six-kingdom classification system
Bacteria, Archaea, Protists, Plants, Fungi, Animals
42
_____ ____ defined a species as one or more groups of individuals that potentially can interbreed, produce fertile offspring, and do not interbreed with other groups
Ernst Mayr
43
Deliberate process of judging the quality of information before accepting it
Critical thinking
44
Systematic study of the observable world
Science
45
Testable explanation for a natural phenomenon.
Hypothesis
46
Systematically making, testing, and evaluating hypotheses
Scientific method
47
Statement, based on a hypothesis, about a condition that should exist if the hypothesis is correct
Prediction
48
Analogous system used for testing hypotheses
Model
49
Test designed to support or falsify a prediction
Experiment
50
Characteristic that differs among individuals or over time
Variable
51
Group of individuals who have certain characteristic or receive a certain treatment
Experimental group
52
Group not exposed to the independent variable being tested
Control group
53
Test results
Data
54
Scientists typically design experiments that will yield _____ _______
quantitative results
55
Data that can be measured or gathered objectively
quantitative results
56
Difference between results obtained from a subset and results from the whole
Sampling error
57
The measure, expressed as a percentage, of the chance that a particular outcome will occur
Probability
58
Refers to result that has very low probability of occurring by chance alone
Statistically significant
59
Hypothesis that has not been disproven after many years of rigorous testing
Scientific Theories
60
What makes one a scientific theory
Consistent with all the data ever gathered Helps make successful predications about other phenomena Can never be proven absolutely Can be disproven by a single observation or result that is inconsistent with it
61
Phenomenon observed to occur in every circumstance without fail Without a complete scientific explanation
Law of nature
62
An objective way of describing the natural world
The Scope of Science