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Chapter 1 Key Terms

Horizontales
the smallest fundamental unit of structure and function in living things
all individuals within a species living within a specific area
a form of logical thinking that uses a general statement to forecast specific results
a group of similar cells carrying out the same function
a form of science that begins with a specific explanation that is then tested
the higher level of organization that consists of functionally related organs
a thoroughly tested and confirmed explanation for observations or phenomena
the study of living organisms and their interactions with one another and their environments
a structure formed of tissues operating together to perform a common function
the process of gradual change in a population that can also lead to new species arising from older species
all living things in a particular area together with the abiotic, nonliving parts of that environment
Verticales
an organism with cells that have nuclei and membrane-bound organelles
a unicellular organism that lacks a nucleus or any other membrane-bound organelle
a field of science, such as biology, that studies living things
a diagram showing the evolutionary relationships among biological species based on similarities and differences in genetic or physical traits or both
a method of research with defined steps that include experiments and careful observation
a scientific report that is reviewed by a scientist’s colleagues before publication
an individual living entity
a form of logical thinking that uses related observations to arrive at a general conclusion
a chemical structure consisting of at least two atoms held together by a chemical bond
a form of science that aims to observe, explore, and find things out
knowledge that covers general truths or the operation of general laws, especially when acquired and tested by the scientific method
a basic unit of matter that cannot be broken down by normal chemical reactions
able to be disproven by experimental results
the ability of an organism to maintain constant internal conditions
a part of an experiment that does not change during the experiment