Chapter 1 Flashcards

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1
Q

What is Biology

A

The study of life

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2
Q

What are the five qualities that constitute life?

A
  1. Growth, Evolution, and development
  2. Reproduction
  3. Organization
  4. Maintenance of internal constancy
  5. Energy use
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3
Q

What is growth?

A

A quantitative size or number.

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4
Q

What is development?

A

A change that has nothing to do with size

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5
Q

What is Evolution?

A

Change over time.

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6
Q

What are the 12 levels of life’s organizational hierarchy?

A
  1. Atom
  2. Molecule
  3. organelle
  4. cell
  5. tissue
  6. organ
  7. organ system
  8. organism
  9. population
  10. community
  11. ecosystem
  12. biosphere
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7
Q

What are emergent properties?

A

A new property that arises as you move through the hierarchy.

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8
Q

What are primary producers? (autotrophs)

A

They make their own food and energy

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9
Q

What are consumers? (Heterotrophs)

A

They get their energy by eating other things.

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10
Q

What is a decomposer?

A

A consumer that specializes in breaking down decaying matter.

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11
Q

What is Homeostasis?

A

Maintaining equilibrium. (or the same state)

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12
Q

What is asexual reproduction?

A

A form of reproduction when one organism is involved.

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13
Q

what is sexual reproduction

A

A form of reproduction when two organisms are involved

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14
Q

what are adaptations?

A

A trader characteristic that provides an advantage for an organism.

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15
Q

What is natural selection?

A

Nature picking out the best individuals. (mechanism of evolution)

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16
Q

What of the three branches of the tree of life? (Also know as the 3 domains)

A

1) bacteria
2) archaea
3) Eukarya

17
Q

Characteristics of Bacteria

A

No nucleus and most are unicellular

18
Q

Characteristics of Archaea

A

No nucleus and most are unicellular

19
Q

Characteristic of Eukarya

A

Contains nucleus and cam be multi or single cell

20
Q

What are the 4 main groups of Eukarya?

A
  1. Protista
  2. Fungi
  3. Animalia
  4. plantae
21
Q

Characteristics of Protista

A

Single or multicellular, Autotroph or heterotroph

22
Q

Characteristics of fungi

A

single or multicellular, heterotrophs

23
Q

Characteristics of animalia

A

Multicellular, heterotrophs

24
Q

characteristics of plantae

A

Multicellular, autotrophs

25
Q

What is Taxonomy

A

The science of naming and organizing species

26
Q

What are Taxa

A

Any category/group

27
Q

what is a species?

A

an alike individual that can breed and their offspring could breed

28
Q

What is the taxonomic hierarchy?

A
  1. Domain
  2. kingdom
  3. Phylum
  4. class
  5. order
  6. family
  7. genus
  8. species
29
Q

how are genus and species written

A

they must be italicized with genus capital and species lowercase.

30
Q

What is science?

A

The collection of information about the natural world

31
Q

What are the 4 main steps of scientific inquiry

A
  1. Observations and ask questions
  2. hypothesis and prediction
  3. data collection
  4. analysis
32
Q

What are theories?

A

An idea that has been tested over and over again and has gained worldwide acceptance.