

50 ! å ȸ ġ ߿ ߰ 50 ҰѴ. 1900 ߹ݱ ڷ Ȱ ٷ. ϴ . ̷ Ȳ ڵ ϰ ߴ. ߴ. ȸκ ϴ ⺻̸, ȸ Żϰ, ȥ Ƿ ġ ߴ. ̷ Ȳ ڷν ׳̱ 'ô븦 پ ' Ͽ. ̵ ڰ ε , λö, ô Ȳ ̷ Ͽ. ʷ 뺧 , ȯ ù <ħ > ÿ ī, ħ , ߴ ٹٶ Ŭ, ǷṰ ٷ Ѵ. п ̹ ǹ̺ٴ óߴ ȭ , ұ ƿ λ ߾. å Ʈ! ó е Ϸ 鿡 Ҹ Ѵ. ̳ ٸ а迡 ְ ڵ λ ̾߱ ִ.

ƿ Darlene R. Stille ̱ ī ڷ Ȱϰ ִ ƿ ִWorld Book Annuals ٹϸ鼭 ڽŸī ± 츲 üϰ ۵ ³ȭ 氢 ҷŰ ִ. ״ ƼƮ ߱ 갭 Žϱ ߴ. ַ ûҳ ִ ƿ 25 ⸦ , ³ȭ, , ı Դ. ̱ ȸ ȸ ƿ öϱ Ͽ ī 뼾(Women Employed) 弭 1973 1976 ʴȸ ´. δ DNA: The Master Molecule of Life, Animal Cells: Smallest Units of Life ִ. ű ¾ λб ġܱа ϰ <ڸ췲> <߾Ϻ> ڷ 20 Ⱓ ΡȸΡȭ ƴ. 2004 ѱâ( ѱйȭ) ϴ ͳ нŹ <̾Ÿ> μ м 鿩ٺ ȭ ִ. ݱ 츮 ã 200 ؿ ڿ е ͺϴ θƮμ ο ϰ ִ. ̷п ѱ 湮 20 Ѵ ̷ڿ ϱ ߴ. δ ڵ ̾߱ 1% 99% ϴ١(ȿ) δ Ʋ ڵ顷 ִ.

Ӹ ڽŵ ٶ ɾ ڵ, 뿡 ̼ ô Ÿ ִףȭ ÷η ϸ ÷η ٽޣ ڣõ 罺 Ʈη ִ ijõ 丮 īȭй ÿ īؾڤ ־ ÷ ߣڤ Ƽ ڸȭ ٹڤȭ θƣηڤ ٸ ̽ƮĹ ƿ ţ Ʈ ȭ ̳ ÷֣õ ̾ ã ߸ ŬX- ڤڻ ޣൿ ظ ȣ ν ȣŲȭڤX- ﷻ ҿ ȣףõ ̽ ȣۣǻ ڡر ̴ Ÿ ̵ ̽õڤڤ ǻ ̷ ٹ Űη Ÿ Ʈõ Ÿ ŻġϣŰ Ͼ õ 丣Ʈ-̷̾й ٹٶ Ŭ ̵η Ʈʣٹ ÿõ ڵ ʾƣֺ 罺 Ʈȣһ ޱ ϣȭ ֵ ̾ Ǯ ֵ Уֺ硤 óȭڤȯ ̵ֺõü õ ÷η غ Ƽ Ƽ콺 ߷Ƽ ڹ٣ֺ ӽ Ʈϣõ 蹰 ΣǷṰ ߸ ű ۣ е ް ãƺ