Final study guide for biology 101
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| All prokaryotic organisms | lack a nucleus
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| A localized group of organisms that belong to the same species is called a | population
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| Chemoautotrophic organisms such as the methanogens take inorganic compounds and initially convert them into organic | carbohydrates
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| The first word of a scientific name, such as Giardia lamblia, is the | genus name
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| A population of organisms consists of individuals of the same species within a biological community. These populations undergo genetic changes throughout time due to environmental influences. What term describes this evolutionary process? | natural selection
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| Entropy is the | measure of disorder in a system
process by which my coffee gets cold as it sits on the desktop while I take this very scary test
overall energy loss as the universe continues to expand and cool
chaos, the random movement and loss of usable energy
(e.)
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| A _____ is an obligate intracellular non-living parasite which can only replicate within a living cell. Even though these infectious particles are considered non-living, they contain DNA or RNA that is surrounded by a protein capsid. | virus
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| Another term that could best describe bacterial life would be | prokaryotic
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| What sugar is found in an RNA molecule? | ribose
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| Which group would you most likely find multicellular organisms? | Plantae
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| What best describes cyanobacteria bacteria? | prokaryote
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| For a molecule to be considered organic it must contain what two elements? | carbon and hydrogen
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| How do the greenhouse gases warm the lower atmosphere? | Molecules such as methane and carbon dioxide become 'excited' when hit by infrared radiation.
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| Prokaryotic and eukaryotic cells have which of the following features in common? | ribosomes
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| The study of algae is called | phycology
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| Concerning a scientific study, an independent variable is a factor that the researcher | manipulates
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| Visible light is a part of the _____________________, which also includes gamma rays, x rays, ultraviolet light, and radio waves. | electromagnetic spectrum
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| The majority of life forms on Earth are | unicellular
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| Why is it important that an experiment include a control group? | Without a control group, there is no basis for knowing if a particular result is due to the variable
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| A unit of heredity existing on an organismal chromosome (DNA)? | a gene
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| How far back does the first evidence of eukaryotic life occur in geological records? | ~1.8 bilion years
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| An organism that can produce its own carbohydrates would be described as | autotrophic
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| ____________ are a symbiotic relationship between a fungal partner and an algal partner. | Lichens
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| When organisms live together in a symbiotic relationship that is harmonious and seems to benefit both life forms, it is considered to be a ______________ relationship. | mutualistic
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| HCl is a very strong acid because | this molecule directly increases the amount of H+ ions in solution
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| The human being is made up of numerous cell types. Approximately how many cells make up the average human adult body? | 10 trillion
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| How many eukaryotic domains are there? | 1
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| An educated scientific guess or speculation is called a | hypothesis
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