Blueprint Magazine
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- Organisms that live in the bottom of the ocean must be able to withstand high ___; they are known as ___.
- Hydrostatic pressure, piezophiles
- Plants use sunlight to convert ___ and ___ into carbohydrates.
- carbon dioxide, water
- Organisms that undergo photosynthesis are known as ___; they obtain their carbon source from ___.
- photoautotrophs, carbon dioxide
- Hot vent producers are ___; they derive their energy from ___.
- chemoautotrophs, hydrogen sulfide
- Methane that is released from the seabed forms the cource of ___ for the Archaebacteria in the ___.
- energy, cold seep
- Water is a stable ___ molecule, making it an exellent ____.
- polar, ionizing agent
- Most biological molecules can be dissolved in ___, which provides an excellent medium for chemical reactions to occur.
- water
- Martian suface shows geologial features of ancient rivers, ___, and ___that have gone dry.
- lakes, oceans
- Mars Twin Rover Expedition has discovered Martian rocks with ___ layers that can only be formed in the presence of ___.
- sedimentary, water
- Europa is one of the four moons of ___ discovered by ___ in 1610.
- Jupiter, Galileo
- Signs of microorganisms were revealed in a sub-glacial lake, known as ___ int the ___.
- Lake Vostok, Antarctica
- the Milky Way Galaxy was formed ____ billion years ago and has ____ billion stars.
- 13.6, 200
- The Universe was born ___ billion yrs ago and organized in to ___ billion galaxies which form clusters and superclusters.
- 13.7, 10
- The satellite known as ____ was launched in 2001 to survey the cosmic ____ background radiation.
- W-MAP, microwave
- The universe expanded a trillion fold in a process known as ____ before forming teh stable ____ atoms.
- inflation, hydrogen
- Stars are composed mostly of ____, and they obtain their energy to glow by the fusion of ____ atoms to form helium.
- hydrogen, hydrogen
- Our sun is composed of ___% of hydrogen and ___% helium.
- 70, 30
- Nuclear fusion of astar stops when it accumulates too much ____. It dies by initiating a ___ explosion.
- iron, super nova
- All the elements found in the _____ are formed in the ____.
- Periodic Table, stars
- The endangered species status of the red wolf was once doubtful, b/c it was not considered as a species; intstead it was thought to be a hybrid b/t the ____ and the ____.
- grey wolves, coyotes
- The common biological definition proposed by Ernst Mayr states: Groups of actually or potentially ____ natural populations which are ____ isolated from other such groups.
- interbreeding, reproductively
- The ____ definition was used by Linnaeus in his classification system that is based of the concept of ____ of species.
- Typological species, fixative
- The four species definitions used in biological classification are ____, ____, ____, and ____.
- typological, morphological, ecological, biological.
- 5 challenges in defining species:
-
1. Modes of reproduction
2. Phenotypic variations
3. Different types of organisms
4. Ecological niches
5. Fossils of extinct organisms - 2 most important considerations of the pluralistic species definition are to achieve ____ and ____.
- cohesion, parsimony
- The 3 mechanisms of speciation are: ____ speciation, ____ speciation and ____ speciation.
- Allopatric, sympatric, parapatric
- Speciation is a multi-step process that takes place over many generations. The first step of mutation is when 2 populations become ____ isolated from eachother. This prevents interbreeding and blocks ____.
- geographically, gene flow
- New traits occur through mutation; these traits will assume by the population through ____ and ____.
- natural selection, genetic drift
- There are only two species of orangutans in the world, they live in the tropical rain forest of ____ and ____.
- Sumatra, Borneo
- The frequent type of speciation is known as ____ speciation, which is caused by ____, leading to the interruption of ____.
- Allopatric, geographical isolation, gene flow