biology Flashcards

1
Q

What is each level of classification called

A

Taxonomy

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2
Q

What is taxonomy

A

used to classify and name organisms

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3
Q

What are scientific names

A

the genus and the species

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4
Q

who was carolus linneus

A

developed a naming system called binomial nomeclature
*levels of life always go from largest to smallest

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5
Q

what are the levels of life

A

domain, kingdom, phylum, class, order, family, genus, species

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6
Q

What is more than one genus called

A

a family

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7
Q

what is order

A

a broad category composed of similar categories

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8
Q

what is binomial nomeclature

A

when each species is assigned a two-part scientific name

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9
Q

what are the domains

A

bacteria, archaea, eukarya,
plante, anamalia, protist, fungi

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10
Q

what is the phylum

A

made up of several diffirent classes

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11
Q

what is the kingdom

A

largest and most inclusive taxonomic categories

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12
Q

what is a group of closely related species called

A

they are called a genus

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13
Q

Eukaryotic cells

A

HAS a nucleus

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14
Q

Prokaryotic

A

DOES NOT have a nucleus

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15
Q

what is phylogeny

A

the study of revolutionary relashionships among organisms
just because 2 things look similar does not mean they share a common ancestor

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16
Q

evolutionary classification

A

grouping organisms based on evolutionary relashionships
the higher the taxon the less recent ancestor

17
Q

what is a cladogram

A

a diagram that shows the evolutionary relationships among a group of organisms

18
Q

dichotomus key

A

used to seperate things into categories

19
Q

What are the characteristics of life

A
  1. order ex: arrangment of cells
  2. homeostasis regulation ex: body temp
  3. respond to stimulus ex: venus fly trap
  4. energy processing
  5. growth and development ex: a baby
  6. reproduction
  7. evolution and adaption
20
Q

what are the levels of organization

A

biosphere, ecosystems, communities, populations, individuals, organ system, organs, tissues, cells, organells, molecules, atoms
they go from largest to smallest

21
Q

What was the cell theory and who came up with it

A

in 1839 mathaias schilden and theodore schwan came up with the idea that all living things are made up of cells and that cells are the smallest unit of life and new cells come from existing cells

22
Q

What is negative feedback

A

a change that reverses the current direction of the system EX: body temperture and blood sugar

23
Q

What is positive feedback

A

amplifies or continues that current state of the system EX: childbirth

24
Q

what are the steps to the scientific method

A
  1. casual question- how or why
  2. hypothesis- testable explanation
  3. prediction- what you should see
  4. test- evidence
  5. conclusion- decision
25
Q

what is mimicry

A

when a harmless species represents a harmful one

26
Q

what is the scientific theory

A

hypothesis with so much evidence regarded as true

27
Q

who came up with the idea of natural selection

A

charels Darwin

28
Q

what are the needs for natural selection

A

population of organisms, hereditary variation, overproduction and struggle for existance, diffrences in reproductive succsses, and evolution adaptations in population

29
Q

who was Robert Hooke

A

built a compund microscope in the mid 1600s and looked at a cork

30
Q

who was anton von leeuwenhook

A

first to see single celled organisms in pond water and first to see cellls in blood

31
Q

what is cell fraction

A

seperate diffirent cell parts