Foundations Of Biology

Our ideas are only instruments which we use to break into phenomena; we must change them when they have served their purpose, as we change a blunt lancet that we have used long enough. 99

Claude Bernard

Organisms living in this taiga ecosystem are adapted to dry, cold weather and to reduced availability of food in winter.

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This giant panda gets its energy by eating bamboo leaves. The Amazon water lily, above left, lives in shallow eutrophic ponds.

DNA is responsible for transmitting genetic information to offspring.

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