Chevalier de Lamarck

Different organisms originated separately by spontaneous generation from nonliving matter.

We now see a hierarchy of species because they differ in age

Species differ from one another because they have different needs.

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#Unit 4. Cell Communication and Cell Signaling

Phosphorylation of MLC  unfolds the myosin II, active and can assemble into bipolar filaments for contraction. 

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#Unit 5. Developmental Biology

Two regions of Drosophila chromosome III contain most of homeotic genes: Antennapedia complex Bithorax complex

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#Unit 10. Ecological Principles

Clement’s organismic model - Competition causes sharp boundaries between groups of species; certain species group together.

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#Unit 7. System Physiology – Animal

After puberty, Growth hormone excess causes acromegaly

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#Unit 5. Developmental Biology