皆様、お早うございます。台風が今頃来るなど、おかしいですね。さて、今日は種とは何かについて改めて講義します。
Good morning everyone. The typhoon 14th has come, but it si too late in Japan. It is strange. How do you think about it? Anyway, today's theme is Species.
皆様は「種」とは何かご存知でしょうか?「種」とは繰り返し子孫を残すことの出来る集団のことを指します。以前も種とは何かについて講義しましたが、覚えていらっしゃいますか?
Do you know what species is? The species means that the group, which can generate next generation (descendant) eternity. I had explained about it before. Do you remember it?
本日は、もう少し具体例を挙げて説明します。皆様がお茶を召し上がる際に、緑茶、紅茶、ウーロン茶など、あると思いますが、その原材料となる茶ノ木は同じ「種」(Camellia sinensis)であることをご存知ですか?
Today I explained about species by using some cases. Did you drink tea on yesterday? Green tea? Black tea? or Oolong tea? Do you know the leaves of those teas are originated from same species (Camellia sinensis)?
製造工程が異なっていて、緑茶は発酵させずに作るのに対して、紅茶は完全発酵、ウーロン茶はその中間なのです。
The precess is so different in those three teas. The green tea is made with no fermentation, the black tea is made with complete fermentation, the oolong tea is the middle.
しかし、人はどうでしょうか?肌の色が黒い人も、白い人も、黄色い人もいますが、同じ種です。チンパンジーといつ別の種になったのでしょうか?謎はまだ明らかにされていません。
By the way, please think about us. There are many progenies whose color of skin are not same, for example brown, yellow, and white. They are same species, because we can make descendant by love. When did we and chimpanzee divided as other species? The mystery has not been dissolved even now.
本日の講義は以上です。最後に、出欠をとります。以下のバナーをクリックしたことで「出席」と認めます。(内山さん、見てますか?)
Today's class is over. Have a nice day. Click the button at the bottom of this What is Life?, if you are a student of this class.
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