Lecture 1: Intro To Themes In The Study Of Life Flashcards
What is the order of Biological Heirarchy?
Atom-Molecule-Organelle-Cell-Tissue-Organ-Organ System-Individual-Population-Community-Ecosystem-Biosphere
Biological hierarchy levels build on the level below it and produce
Emergent properties
Emergent properties in biological hierarchy results from
Arrangement and interaction of parts as complexity increases
System
Combination of components that function together
Systems biology is
Exploration of a biological system by analyzing interaction among its parts; it examines and models dynamic behavior of an integrated network of components
Analyzing biological structure gives us
clues about what it does and how it works.
Knowing the biological function of something
Provides insight into its structure and organization
Example of Structure and Function
Leaf is broad and flat, maximizing capture of light by chloroplasts.
Structure of a bird’s wing. Is adapted to flight
Cells are
The smallest unit of organization that can perform all activities required for life
Cell theory states that
All living organisms are made from cells
All cells are enclosed by
A membrane that regulates passage of materials between the cell and its environment and use DNA as their genetic information.
Prokaryotic cells are
Single celled and lack a nucleus or other membrane enclosed organelles
Prokaryotic cells are ________ than eukaryotic cells.
Smaller
Prokaryotic cell examples
Bacteria and eukaryotes
Eukaryotic cells contain
Membrane-enclosed organelles
Eukaryotic cell examples
Plants and animals
Evolution is a
Scientific explanation for both unity and diversity of organisms.
Biological change in which species accumulate differences from their ancestors as they adapt to different environments over time.
Taxonomy is a
Branch of biology that names and classifies species into groups of increasing breadth
The broadest units of classification in the classification of life are
Domains
Charles Darwin observed that
Individuals in a population vary in their traits, many of which seem to be heritable.
More offspring are produced than survive, and competition is inevitable.
Species generally suit their environment.
Charles Darwin reasoned that
Individuals with traits that are best suited to their environment are more likely to survive and reproduce, therefore overtime, more individuals in a population will have advantageous traits.
Data are
Recorded observations or items of information that fall into 2 categories- qualitative and quantitative data.
Qualitative data
Descriptions
Quantitative data
Recorded numerical measurements, which are sometimes organized in tables and graphs
