Biology Chapter 1 & 2 Exam | Scientific Method,
Levels of Organization & Life Processes
List the levels of organization for life
1. Biosphere 2. Ecosystem 3. Community 4. Populations
5. Organism 6. Organs and organ systems 7. Tissue 8. Cell 9. Organelle 10. Molecule
What is a Biosphere?
All life on earth and the places where they exist
What is an ecosystem?
Organisms in a particular area and physical components in which life interacts - ex: soil, water,
light
What is a community?
All organisms in an ecosystem
What is a population?
All the individuals of a particular species living in a community
What is an organism?
An individual living thing
What are organs and organ system?
Body parts that have a function
What is tissue?
A group of similar cells preforming a specific function
What is a cell?
Fundamental structural and functional unit of life
What is a molecule?
Chemical structure consisting of two or more units called atoms
What is a controlled experiment?
, Is one in which an experimental group is compared with a controlled group - differ only in the
one variable the experiment is designed to test
What is a Hypothesis?
proposed explanation for a set of observations, it leads to predictions that can be tested by
making additional observations of experiments
What is Evolution?
The process of change that has transformed life on earth from its earliest forms to the vast array
of organisms living today
What is Natural Selection?
A process in which individuals with certain inherited traits are more likely to survive and
reproduce than are individuals that do not have those traits.
What is the full name for DNA?
Deoxyribonucleic acid
What does DNA do?
Stores genetic information for all living things
What is the full name for RNA?
Ribonucleic acid
What does RNA do?
Copies and transports it for the protein synthesis
What is a structure?
The way a biological entity is organized, composed, and shaped to perform a specific function at
any level of organization, from molecules to cells, tissues, organs, and entire organisms
What is a function?
Describes the specific purpose, role, or activity of an organism, organ, or part, often explaining
how its structure contributes to the survival and reproduction of the organism through
processes like natural selection
What are the most common elements in organisms?
C(Carbon), H(hydrogen),O(oxygen), N(nitrogen), P(phosphorus)
Levels of Organization & Life Processes
List the levels of organization for life
1. Biosphere 2. Ecosystem 3. Community 4. Populations
5. Organism 6. Organs and organ systems 7. Tissue 8. Cell 9. Organelle 10. Molecule
What is a Biosphere?
All life on earth and the places where they exist
What is an ecosystem?
Organisms in a particular area and physical components in which life interacts - ex: soil, water,
light
What is a community?
All organisms in an ecosystem
What is a population?
All the individuals of a particular species living in a community
What is an organism?
An individual living thing
What are organs and organ system?
Body parts that have a function
What is tissue?
A group of similar cells preforming a specific function
What is a cell?
Fundamental structural and functional unit of life
What is a molecule?
Chemical structure consisting of two or more units called atoms
What is a controlled experiment?
, Is one in which an experimental group is compared with a controlled group - differ only in the
one variable the experiment is designed to test
What is a Hypothesis?
proposed explanation for a set of observations, it leads to predictions that can be tested by
making additional observations of experiments
What is Evolution?
The process of change that has transformed life on earth from its earliest forms to the vast array
of organisms living today
What is Natural Selection?
A process in which individuals with certain inherited traits are more likely to survive and
reproduce than are individuals that do not have those traits.
What is the full name for DNA?
Deoxyribonucleic acid
What does DNA do?
Stores genetic information for all living things
What is the full name for RNA?
Ribonucleic acid
What does RNA do?
Copies and transports it for the protein synthesis
What is a structure?
The way a biological entity is organized, composed, and shaped to perform a specific function at
any level of organization, from molecules to cells, tissues, organs, and entire organisms
What is a function?
Describes the specific purpose, role, or activity of an organism, organ, or part, often explaining
how its structure contributes to the survival and reproduction of the organism through
processes like natural selection
What are the most common elements in organisms?
C(Carbon), H(hydrogen),O(oxygen), N(nitrogen), P(phosphorus)
