The Science of Biology

The study of living things.

Properties (or Characteristics) of Life:

1. Cellular organization 2. Order 3. Sensitivity 4. Growth, development, and reproduction. 5. Energy utilization. 6. Evolutionary adaptation 7. Homeostasis

Hierarchical Organization of the Biological World:

1. Cellular Level 2. Organismal Level 3. Populational Level

Know Page 3

Fig. 1.2a(TE Art)

CELLULAR LEVEL

Atoms

Molecule

Macromolecule

Organelle

Cell

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Fig. 1.2a1(TE Art)

Atoms

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Fig. 1.2a2(TE Art)

Molecule

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Macromolecule

Fig. 1.2a3(TE Art)

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Fig. 1.2a4

Fig. 1.2a5

ORGANISMAL LEVEL

Tissue

Organ

Organ system

Organism

Fig. 1.2b(TE Art)

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Fig. 1.2b1

Fig. 1.2b2(TE Art)

Organ

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Organ system

Fig. 1.2b3(TE Art)

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Fig. 1.2b4

Fig. 1.2c

Fig. 1.2c1

Fig. 1.2c2

Fig. 1.2c3

Fig. 1.2c4

Emergent Properties At each higher level in the living hierarchy,

novel properties emerge. They result from the way in which components interact, and often cannot be guessed just by looking at the parts themselves

Example: one fish cell tells you very little about the whole fish