The Study of Life Flashcards

1
Q

First characteristic of Life

A

Life is organized

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2
Q

Second characteristic of Life

A

Required materials and energy

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3
Q

Third characteristic of Life

A

Has the ability to reproduce and develop

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4
Q

Fourth characteristic of Life

A

Responds to the environment

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5
Q

Fifth characteristic of Life

A

Maintains an internal environment

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6
Q

Sixth characteristic of Life

A

Has the capacity to adapt to its environment

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7
Q

1st level

A

Atoms-smallest unit of any element

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8
Q

2nd level

A

molecule-union of two or more atoms

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9
Q

3rd level

A

cell-smallest unit of life, unicellular

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10
Q

4th level

A

tissues-perform a function

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11
Q

5th level

A

organ-function together for a specific task

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12
Q

6th level

A

organ system-work together with organs

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13
Q

7th level

A

organism-single living individual

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14
Q

8th level

A

population-same species

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15
Q

9th level

A

community-different species

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16
Q

10th level

A

ecosystem-community and physical involvement

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17
Q

11th level

A

biosphere-largest organizational level

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18
Q

Autotroph

A

Make their own foods (plants)

19
Q

Heterotrophs

A

Do not make their own food (humans and animals)

20
Q

Consumers

A

Eat other organisms

21
Q

Decomposers

A

Breakdown dead and decaying organisms

22
Q

Asexual reproduction

A

One parent produces genetically identical offspring

23
Q

Sexual reproduction

A

Two parents produce genetically diverse off spring

24
Q

Why is natural selection not survival of the fittest?

A

Mechanism evolutionary change. Differential reproductive success.

25
1st level of classification
Kingdom/Domain
26
2nd level of classification
Phylum/division
27
3rd level of classification
Class
28
4th level of classification
Order
29
5th level of classification
Family
30
6th level of classification
Genus
31
7th level of classification
Species
32
What is binomial nomenclature
Scientific names for species
33
Domain bacteria
no nucleus or organelles, unicellular
34
Domain Archaea
no nucleus or organelles, unicellular
35
Domain Eukarya
complex cell structure, DNA in nucleus, uni/multicellular
36
Plantae
Plant, multicellular, autotroph
37
Fungi
Most multicellular, heterotroph, decomposers, consumers through external digestion
38
Animalia
multicellular, heterotroph, ingest
39
Protista
uni/multicellular, autotroph/heterotroph
40
What is a hypothesis?
a tentative, testable explanation
41
Why is peer review so important in the scientific process?
Reduces error, bias, and experimental flaws
42
Independent variable
factor being tested
43
Dependent variable
result of change
44
What is a theory?
Concepts that join together well supported and related hypothesis to explain natural phenomenon