Flash cards

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1
Q

Bioprospecting

A

the process of discovery and commercialization of new products based on biological resources.

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2
Q

Nanobes

A

tiny filamental structure first found in some rocks and sediments. Smallest for of life

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3
Q

Proto-cells

A

Presumed stage of chemical evolution that preceded living cells

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4
Q

Big Bang

A

Model for the origin of universe by nearly instantaneous destruction of all matter and energy through all the space

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5
Q

Self-replicating systems

A

any behavior of a dynamical system that yields construction of an identical copy of itself.

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6
Q

RNA world

A

Model for a time prior to the evolution of DNA; A self replicating system chemically involved in which RNA strands were templates for protein synthesis

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7
Q

Stromatolites

A

Fossilized remains dome shaped mats of swallow water communities cyanobacteria species especially that were unfiltrated with dissolved minerals and find sediments some are 3 billion years old

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8
Q

Chemaoutotrophs

A

Any prokaryotic cell that makes it’s own food by oxidizing inorganic substances

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9
Q

Cyanobacteria

A

A type of single celled photoautotroph; The first to use and noncyclic pathway of photosynthesis which slowly and Rich the early atmosphere was oxygen

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10
Q

Prokaryotic cells

A

A single celled organism, often walled, that does not have the organelles characteristic of eukaryotic cells. Only bacteria and Archaeans are prokaryotic

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11
Q

Eukaryotic cells

A

Type of cell that starts life with the nucleus and other membrane bound organelles

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12
Q

Rodinia

A

the name of a hypothesized supercontinent, a continent which contained most or all of Earth’s landmass.

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13
Q

Heterotrophs

A

Organism that cannot make its own food: feeds on other organisms, there wastes, or there remains

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14
Q

Autotroph’s

A

An organism that synthesizes it’s on food from simple inorganic compounds in its environment with the energy captured from the sun or from oxidizing inorganic substances

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15
Q

Endosymbiosis

A

And intimate, Per minute ecological interaction in which one species lives and reproduces in the other’s body to benefit of one or both

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16
Q

Glaucophytes

A

a small group of rare freshwater microscopic algae

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17
Q

Species

A

Of sexually reproducing species, one or more natural populations of individuals that successfully interbreed and are isolated reproductively from other such groups

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18
Q

Biogeography

A

Scientific study of patterns in the geographic distribution of species in communities

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19
Q

Comparative morphology

A

Scientific study of comparable external body parts of embryonic stages an adult forms of minor lineages

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20
Q

Fossils

A

Recognizable, physical evidence of an organism that lived in the distant past

21
Q

Evolution

A

Genetic change in a line of descent by microevolutionary events

22
Q

Catastrophism

A

Idea that abrupt changes in the geologic and fossil records are evidence of divinely invoked catastrophes

23
Q

Inheritance of acquired characteristics

A

Transmission, from parents to offspring, of jeans that underlie the traits characteristics of their species

24
Q

Theory of uniformity

A

Siri that earths surface has changed and slow, uniformly repetitive ways except for expected annual catastrophes, such as big flights

25
Q

Natural selection

A

Micro evolutionary process; the outcome of differences and survival and reproduction among individuals of a population that differ in the details of their heritable traits

26
Q

Fossilization

A

How fossils form over time. An organism or evidence of its gets buried in sediments or volcanic ash; water so early infiltrates the remains, and metal ions and other inorganic compounds dissolved in its place the minerals in bones and other hard ttissues

27
Q

Fossil record

A

life’s evolutionary epic that unfolded over four billion years as environmental conditions and genetic potential interacted in accordance with natural selection

28
Q

Stratification

A

Stacks of sedimentary rock layers, built up by the deposition of silt and other materials over time.

29
Q

Linage

A

Line of descent

30
Q

Radiometric dating

A

Method of measuring for portions of a radioisotope in a mineral trapped long ago in newly formed rock and a daughter isotope that form from it by radioactive decay in the same rock

31
Q

Half-life

A

The unvarying time it takes for half a quantity of any radio isotope to decay into a more stable form

32
Q

Geologic timescale

A

Time scale for earths history; major subdivisions correspond to mass extinctions

33
Q

Macro evolution

A

Large scale patterns, rates of change, and trends among the lineages

34
Q

Proterozoic

A

Era between 2.5 million to 544 million years ago. And oxygen-rich early atmosphere formed, sparkling the Cambrian explosion of biodiversity

35
Q

Paleozoic

A

Era from 544,000,000 to 248,000,000 years ago; Cambrian through Permian

36
Q

Mesozoic

A

Era of spectacular expansion in the range of global diverse city; lasted from 240,000,000 to 65,000,000 years ago

37
Q

Cenozoic

A

The modern geologic era, from 65 men years ago into the present

38
Q

Archean eon

A

Eon extending from the time that life originated, 3.8 billion years ago, to 2.5 billion years ago

39
Q

Pangaea

A

Paleozoic supercontinent; the first land plants and animals evolved on it

40
Q

Plate tectonics theory

A

Siri that great slabs or plates of earths outer layer float on hot, semi-molten mantle. All plates are moving slowly and have rafted continents to new positions over time

41
Q

Gondwana

A

Paleozoic supercontinent that later became part of Pangaea

42
Q

Homologous structures

A

One of a pair of chromosomes in a body cells of diploid organisms; except for the pairing of nonidentical sex chromosomes, a pair has not the same size, shape, and gene sequence

43
Q

Morphological divergence

A

Pattern of macro evolution. One or more body parts of genetically diverging lineages undergo structural and functional changes from the parts in the common ancestor

44
Q

Morphological convergence

A

A pattern of macro evolution. In response to similar experimental pressures, body parts evolutionarily distant lineages slowly Evolve in similar ways and end up being a like function, appearance, or both

45
Q

Analgous structures

A

Dissimilar body parts that have become similar in structure, function, or both in lineages that are not closely related but were subjected to similar pressures

46
Q

Alu elements

A

one of the most successful of all mobile elements, having a copy number well in excess of 1 million copies in the human genome

47
Q

Nucleic acid hybridization

A

Any base pairing between DNA or RNA strands from different sources

48
Q

Molecular clock

A

Model used to calculate the time of origin of one lineage related to others; assumes that a group of genes accumulates mutations at a constant rate, measurable as a series of predictable text back through time

49
Q

Thermophile

A

An organism that thrives at relatively high temperatures, between 41 and 122 °C