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MIDDLE SCHOOL

Life Science

Biological Evolution: Unity and Diversity

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Biological Evolution: Unity and Diversity: Vertebrates and Invertebrates

ืื‘ื•ืœื•ืฆื™ื” ื•ืืงื•ืœื•ื’ื™ื” ืฉืœ ื“ื•-ื—ื™ื™ื

Description

ืื‘ื•ืœื•ืฆื™ื” ื•ืืงื•ืœื•ื’ื™ื” ืฉืœ ื“ื•-ื—ื™ื™ื

ื“ื•-ื—ื™ื™ื ื”ื ืงื‘ื•ืฆื” ืžืจืชืงืช ืฉืœ ื—ื•ืœื™ื™ืชื ื™ื ืฉืžื’ืฉืจืช ืขืœ ื”ืคืขืจ ื”ืื‘ื•ืœื•ืฆื™ื•ื ื™ ื‘ื™ืŸ ื—ื™ื™ื ื™ืžื™ื™ื ืœื™ื‘ืฉืชื™ื™ื. ื”ื ื”ื•ืคื™ืขื• ืœืจืืฉื•ื ื” ืœืคื ื™ ื™ื•ืชืจ ืž-350 ืžื™ืœื™ื•ืŸ ืฉื ื”, ื•ื”ืชืคืชื—ื• ืžื“ื’ื™ื ื‘ืขืœื™ ืกื ืคื™ืจื™ื-ืื•ื ื•ืช. ืงื™ื•ืžื ื”ื›ืคื•ืœ ื”ืŸ ื‘ืžื™ื ื•ื”ืŸ ื‘ื™ื‘ืฉื” ืžื“ื’ื™ืฉ ื”ืชืืžื” ื™ื•ืฆืืช ื“ื•ืคืŸ ืœืกื‘ื™ื‘ื•ืช ืžืฉืชื ื•ืช ืœืื•ืจืš ื–ืžืŸ ื’ืื•ืœื•ื’ื™. ื“ื•-ื—ื™ื™ื, ื›ื•...

Transcript

ื›ื™ื“ื•ืข ืœื ื•, ื“ื•-ื—ื™ื™ื ื”ื ื‘ืขืœื™ ื“ื ืงืจ ื”ื—ื™ื™ื ื‘ืžื™ื ื•ืขืœ ื”ื™ื‘ืฉื”.

ื”ืชืืžื•ืช ืืœื• ื”ื•ืคื™ืขื• ืœืคื ื™ ื›-370 ืžื™ืœื™ื•ืŸ ืฉื ื”, ื›ืืฉืจ ื“ื’ื™ื ื‘ืขืœื™ ืกื ืคื™ืจื™ ืื•ื ื” ื”ื™ื“ื•ืขื™ื ื›ืกืจืงื•ืคื˜ืจื™ื’ื™ื ื”ืชืคืชื—ื• ืœืกื ืคื™ืจื™ื ื—ื–ืงื™ื ื•ื‘ืฉืจื ื™ื™ื ื•ืจื™ืื•ืช ืคืจื™ืžื™ื˜ื™ื‘ื™ื•ืช.

ืชื›ื•ื ื•ืช ืืœื• ืกื™ื™ืขื• ืœื”ื ืœืฉืจื•ื“ ื‘ืžื™ื ืจื“ื•ื“ื™ื.

ืขื ื”ื–ืžืŸ, ื—ืœืง ืžืฆืืฆืื™ื”ื ื”ืชืคืชื—ื• ืœื˜ื˜ืจืคื•ื“ื™ื ืžื•ืงื“ืžื™ื, ืื‘ื•ืชื™ื”ื ืฉืœ ื”ื“ื•-ื—ื™ื™ื ืฉืœ ื”ื™ื•ื.

ืจื•ื‘ ื”ื“ื•-ื—ื™ื™...