IV.Gymnosperm

Sexual reproduction-Oogamous

Female gametophyte is made up of n endosperm on which 2-8 archegonia are present

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#Id: 9536

#XL - T Zoology

Evolution

Evolution means descent with modification, or change in the form, physiology, and behavior of organisms over many generations of time. 

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#Id: 9537

#XL - T Zoology

Proximate causes - The subject of cell biology, neurobiology, and many other biological disciplines.

Ultimate causes - Their historical causes, especially the action of natural selection.

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#Id: 9538

#XL - T Zoology

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#XL - T Zoology

Before Darwin - Christians interpreted “special creation”

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#XL - T Zoology

Carolus Linnaeus - Classified “related” species into genera, “related” genera into orders, and so on. 

To him, “relatedness” meant propinquity in the Creator’s design.

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#XL - T Zoology

James Hutton and Charles Lyell – Uniformitarianism

Darwin was greatly influenced by Lyell’s teachings, and he adopted uniformitarianism in his thinking about evolution.