Билингвальный урок в презентации Биология
2- Introduction to Biology 1- [bahy-ol-uh-jee] Bio = life
...ology = the study of
Biology is the science that studies life * 1.1 The Science of Life Biology unifies much of natural life
Biology attempts to define life
Biology Living reveals a hierarchical organization of living systems 2 * Properties of Life Living organisms:
are composed of cells (Cellular Organization)
are complex and ordered (Ordered Complexity)
respond to their environment (Sensitivity)
can Grow, Develop and Reproduce
obtain and use energy (Energy Utilization)
maintain internal balance (Homeostasis)
allow for Evolutionary Adaptation
The definitions of life are adapting with the field
where do viruses fit in? * Levels of Organization Cellular Level
Atoms molecules organelles cells
Organismal Level
Tissues organs organ systems
Population Level
Population species biological community
Ecosystem Level
Biological community + physical habitat (soil, water, atmosphere)
The Biosphere
The entire planet thought of as an ecosystem 4 * Levels of Organization Cellular Organization
cells
organelles
molecules
atoms
The cell is the
basic unit of life. Fig. 1.1-1 6 * Levels of Organization Organismal Level
organism
organ systems
organs
tissues Fig. 1.1-2 8 * Levels of Organization Population Level
ecosystem
community
species
population Fig. 1.1-3 10 * Levels of Organization Each level of organization builds on the level below it but often demonstrates new features
Emergent properties: new properties present at one level that are not seen in the previous level
New properties emerging may be greater than the sum of the the parts Fig. 1.13 The Diversity of Life Three Domains:
1. Eukarya
2. Archaea
3. Bacteria 40 Fig. 1.13-1 Domain Eukarya is
Divided into four
Kingdoms:
1. Plantae
2. Fungi
3. Animalia
4. Protista 41 Fig. 1.13-2 42 Fig. 1.13-3 43