It is crucial to avoid air bubbles in the assembled potometer. The plant stem must be cut under water to prevent airlocks forming in the xylem. All fittings must be tight so that the only way the apparatus can lose water is by the plant transpiring.
Answer:
The answer is ecosystem!
I like to think of an ecosystem as a web. Webs spun by spiders are often very intricate and unique. If you were to cut out a piece of a web you would lose the overall stability. JUST like a ecosystem. Ecosystems are very fragile yet beautiful and unique!
I hope this helps!
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Ciao!
♥, Sadie
Astronomers use an effect called parallax.
Hemophilia is the result of a defective X chromosome. males have XY chromosomes; females have XX chromosomes. If a man has a defective X chromosome, he has no normal X chromosome to balance it out. Therefore, he is more likely to present hemophilia. However, a hemophiliac man's male children will all be healthy, assuming his partner is not a hemophiliac, because the defective X chromosome was not passed on. All his daughters will be carriers, though, regardless of whether their mother is a hemophiliac.
