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Biology 121 EXAM 1 Chapters 1-3 Questions with Correct Answers.
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Biology 121 EXAM 1 Chapters 1-3Questions with Correct Answers
Evolution - correct answers:Descent with modification: genetic change in a population or species over
generations: the heritable changes that have produced Earth's diversity of organisms. Changes in DNA
through time.
Biology - correct answers:The scientific study of life
List the 7 Properties of life that ALL living organisms share - correct answers:1. Reproduction
2. Growth and Development
3. Energy Use
4. Order
5. Cells
6. Response to the Environment
7. Evolution
The levels of the biological organizations - correct answers:1. Biosphere
2. Ecosystem
3. Community
4. Population
5. Organism
6. Organ System and Organ
7. Tissue
8. Cell
9. Organelle
10. Molecule
, Biosphere - correct answers:The global ecosystem: the entire portion of Earth inhabited by life; all of life
and where it lives at
Ecosystem - correct answers:All the organisms in a give area, along with the nonliving (abiotic) factors
with which they interact: a biological community and its physical environment
Community - correct answers:All the organisms inhabiting and potentially interacting in a particular area;
an assemblage of populations of different species
Population - correct answers:A group of interacting individuals belonging to one species and living in the
same geographic area at the same time.
Organisms - correct answers:An individual living thing, such as a bacterium, fungus, protist, plant or
animal.
Organ systems - correct answers:A group of organs that work together in performing vital body functions
Organ - correct answers:A structure consisting of two or more tissues that coordinate to perform specific
functions
Tissue - correct answers:An integrated group of similar cells that performs a specific function within a
multicellular organism
Cell - correct answers:A basic unit of living matter separated from its environment by a plasma
membrane; the fundamental structural unit of life
Organelle - correct answers:A membrane-enclosed structure with a specialized function within a
eukaryotic cell
Molecule - correct answers:A group of two or more atoms held together by covalent bonds
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