Bio 121 exam 1 - Study guides, Class notes & Summaries

Bio 121 Exam 1 Povinelli Questions with Complete Solutions.

Biology - ️️study of life Unicellular - ️️organism with only one cell Multicellular - ️️organism with multiple cells Biosphere - ️️the regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms. Ecosystem - ️️a biological community of interacting organisms and their physical environment. Community - ️️an interacting group of various species in a common location Population - ️️a group of individuals of the same speci...

Bio 121 Exam 1 Povinelli Questions with Complete Solutions

Natural Selection - Answer A theory in which individuals with certain traits produce more offspring than others without these traits. Evolution - Answer The gradual change in a species over time. Adaptation - Answer When the heritable trait increases an individuals fitness in a particular environment. Ancestral trait - Answer Is a character that existed in an ancestor. Derived trait - Answer Is one that is a modified form of the ancestral trait, found in a descendants....

Ecology is the study of the structure, function, and interactions among natural systems in the biosphere. Abiotic factors are non-living physical conditions such as weather, climate, geological characteristics and phenomena, and geographical structure. Biotic factors are those 'living' characteristics of the environment such as organisms and their products. Biosphere The biosphere is the area on Earth where life may exist. The physical platform for the biosphere is created by the atmosphere ...

BIO 121 Exam 1 Review Spring 2024 Evolution The gradual change in a species over time. Adaptation When the heritable trait increases an individuals fitness in a particular environment. Ancestral trait Is a character that existed in an ancestor. Derived trait Is one that is a modified form of the ancestral trait, found in a descendants. Vestigial trait A reduced or incompletely developed structure that has no (or reduced) function (e.g. human tailbone or wisdom teeth). Homologous str

BIO 121 Exam 1 Review Spring 2024 Evolution The gradual change in a species over time. Adaptation When the heritable trait increases an individuals fitness in a particular environment. Ancestral trait Is a character that existed in an ancestor. Derived trait Is one that is a modified form of the ancestral trait, found in a descendants. Vestigial trait A reduced or incompletely developed structure that has no (or reduced) function (e.g. human tailbone or wisdom teeth).

What are the characteristics of life? organization, metabolism, responsiveness, growth, development, reproduction What are the levels of biological organization molecules-Organelles-cells-tissue-organs and organ systems-organisms-populations-communities-Ecosystems-The biosphere Biotic Vs. Abiotic Biotic: living ex. animals, plants, bacteria Abiotic: nonliving ex. rock, water, air What is emergent property? They result from the arrangement and interaction of parts within a system What are two...

Environmental Science The scientific study of how the natural world works, how our environment affects us, and how we affect our environment Natural Resources the goods provided by the environment. Can be renewable or nonrenewable Ecosystem Services natural systems provided by the environment Ecological Footprint a quantitative measure of resource consumption based on the cumulative area of biologically productive land and water Two Big jumps in our population due to: Agricultural Revolution...