Key Questions Unit 1
Biology Concepts and Connections:
Chapter 1: The Scope of Biology
Key Words:
Ecosystem: All the organisms in a given area, along with the non-living factors with which they interact; a biological community and its physical environment.
Community: An assemblage of all the organisms living together and potentially interacting in a particular area.
Population: A group of interacting individuals belonging to one species and living in the same geographic area.
Organism: An individual living thing
Organ systems: A group of organs that work together in performing vital body functions
Organ: A structure consisting of several tissues adapted as a group to perform specific functions
Molecule: a group if two or more atoms held together by covalent bonds. Hypothesis: A tentative explanation a scientist proposes for a specific phenomenon that has been observed
Controlled experiment: A component of the process of science whereby a scientist carries out two parallel tests, an experimental test and a control test. The experimental test differs from the controlled by one factor- the variable. species: A group whose members possess similar anatomical characteristics and have the ability to interbreed.
Domain: A taxonomic category above the kingdom level; the three domains of life are Archaea, Bacteria and Eukarya.
Theory: A widely accepted explanatory idea that is broad in scope and supported by a large body of evidence. Evolutionary Adaptations: an inherited characteristic that enhances an organisms ability to survive and reproduce in a particular environment.
Natural selection: Differential success in reproduction by different phenotypes resulting from interactions with the environment. Evolution occurs when natural selection produces changes in the relative frequencies of alleles in a population’s gene pool. Biology Concepts and Connections
Chapter 1: The Scope of Biology
Notes:
1.1 Scientists use two main approaches to learn about
Chapter 1: The Scope of Biology
Key Words:
Ecosystem: All the organisms in a given area, along with the non-living factors with which they interact; a biological community and its physical environment.
Community: An assemblage of all the organisms living together and potentially interacting in a particular area.
Population: A group of interacting individuals belonging to one species and living in the same geographic area.
Organism: An individual living thing
Organ systems: A group of organs that work together in performing vital body functions
Organ: A structure consisting of several tissues adapted as a group to perform specific functions
Molecule: a group if two or more atoms held together by covalent bonds. Hypothesis: A tentative explanation a scientist proposes for a specific phenomenon that has been observed
Controlled experiment: A component of the process of science whereby a scientist carries out two parallel tests, an experimental test and a control test. The experimental test differs from the controlled by one factor- the variable. species: A group whose members possess similar anatomical characteristics and have the ability to interbreed.
Domain: A taxonomic category above the kingdom level; the three domains of life are Archaea, Bacteria and Eukarya.
Theory: A widely accepted explanatory idea that is broad in scope and supported by a large body of evidence. Evolutionary Adaptations: an inherited characteristic that enhances an organisms ability to survive and reproduce in a particular environment.
Natural selection: Differential success in reproduction by different phenotypes resulting from interactions with the environment. Evolution occurs when natural selection produces changes in the relative frequencies of alleles in a population’s gene pool. Biology Concepts and Connections
Chapter 1: The Scope of Biology
Notes:
1.1 Scientists use two main approaches to learn about