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Human Biology - Chapters 1 & 2 questions and answers
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Human Biology - Chapters 1 & 2 questions and answers
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Human Biology - Chapters 1 & 2Cell - correct answer ✔✔An organized unit that can survive and reproduce by itself, using energy,
necessary raw materials, and DNA instructions.
homeostasis - correct answer ✔✔A state of overall internal chemical and physical stability that is
required for survival of cells and the body as a whole.
primates - correct answer ✔✔A distinct group of mammals, that includes humans, apes, and their close
relatives.
vertebrate - correct answer ✔✔An animal that has a backbone.
biosphere - correct answer ✔✔All parts of the earth's waters, crust, and atmosphere in which organisms
live.
control group - correct answer ✔✔In an experiment, a group to which one or more experimental groups
can be compared.
experiment - correct answer ✔✔A test carried out under controlled conditions that the researcher can
manipulate.
hypothesis - correct answer ✔✔A proposed explanation for an observation or how a natural process
works.
sampling error - correct answer ✔✔Distortion of experimental results, often because the sample size is
too small.
scientific method - correct answer ✔✔Any systematic way of obtaining information about the natural
world.
, variable - correct answer ✔✔A factor that can change over time or under different circumstances.
critical thinking - correct answer ✔✔Using systematic, objective strategies to judge the quality of
information; evidence-based thinking.
fact - correct answer ✔✔Verifiable information, not opinion or speculation.
opinion - correct answer ✔✔A subjective judgment.
scientific theory - correct answer ✔✔A thoroughly tested explanation of a broad range of natural events
and observations.
antibiotic - correct answer ✔✔A substance that can kill microorganisms.
emerging disease - correct answer ✔✔A disease cause by a pathogenthat until recently, did not infect
humens, or did so only recently.
All life on earth has come about through a process of ___________ . - correct answer ✔✔evolution
List the defining features of a human being. - correct answer ✔✔A large and well-developed brain, great
manual dexterity, sophisticated skills for language and mental analysis, and complex social behaviors.
A continual flow of ________ and _________ sustains the organization of life. - correct answer
✔✔energy; cycling of raw materials.
Each organism is a member of a ___________. - correct answer ✔✔population
atom - correct answer ✔✔The smallest unit having the given properties of an element.
element - correct answer ✔✔A pure substance that cannot be broken down to another substance by
ordinary chemical or physical techniques.
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