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The Themes of Life
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Cells and Organization
the act of arranging in a systematic way for use or action Cell Life’s basic unit of structure and function
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Cellular Basis of Life UNICELLULAR – one cell
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Cellular Basis of Life MULTICELLULAR – many cells
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Cellular Basis of Life All living things are made of one or more cells.
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Biological Systems Joints, muscles, brain and blood vessels = hand typing
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How is a sports team a system?
Biological Systems How is a sports team a system?
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Cellular Basis of Life Organelle (nucleus) >
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Cellular Basis of Life Cell (neuron) >
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Cellular Basis of Life Tissues (nerve tissue) >
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Cellular Basis of Life Organ (brain) >
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Cellular Basis of Life Organ system (nervous system)
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Response to Stimuli Stimulus
Environmental change that triggers a response
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Homeostasis Homeostasis
the maintenance of the constant internal environment
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Regulation / Homeostasis
GLUCOSE BALANCE Increase in blood sugar is sensed by the pancreas which releases insulin. Insulin allows the cells to take in sugar and store extra for later.
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Metabolism Heterotrophic Autotrophic
the sum of all chemical reactions in the body Heterotrophic Autotrophic
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Growth and Development
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Change Through Time Evolution
process of change…change in the proportion of inherited genes in a population
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Reproduction & Inheritance
Reproduction is essential to the survival of the species, NOT the individual
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Reproduction & Inheritance
Genes (made of DNA) control traits and are passed down from parents.
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Reproduction & Inheritance
ASEXUAL REPRODUCTION Regeneration
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Reproduction & Inheritance
ASEXUAL REPRODUCTION Budding
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Reproduction & Inheritance
ASEXUAL REPRODUCTION Binary Fission
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Reproduction & Inheritance
SEXUAL REPRODUCTION EGG AND SPERM NECESSARY
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Form and Function How something works is related to its structure.
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Form and Function Aerodynamic shape > glide through the air
Honeycomb bones > strong but lightweight Long extensions of nerve cells > coordinate flying movements
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Form and Function Scooping fish from the water PELLICAN
POUCH USED TO SCOOP PELLICAN
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Form and Function Eating large prey GOLDEN EAGLE
HOOKED FOR TEARING PREY GOLDEN EAGLE
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Form and Function Cracking seeds EVENING GROSBEAK
SHORT, HEAVY & POWERFUL EVENING GROSBEAK
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Form and Function Eating nectar from a flower HUMMING- BIRD
LONG & SLENDER FOR PROBING HUMMING- BIRD
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Form and Function Catching insects in flight BARN SWALLOW
SHORT, OPENS WIDE, CLOSES QUICKLY BARN SWALLOW
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Form and Function Probing mud for invertebrates LONG, PINCHING GODWIT
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Form and Function Eating insects taken from dead trees WOOD- PECKER
STRONG & CHISEL-LIKE WOOD- PECKER
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