By Grace Hansen
This identify is full of enjoyable and fascinating technology proof which could shock your little readers! a colourful, full-bleed picture accompanies every one enjoyable truth to draw these reluctant readers. entire with a desk of contents, thesaurus, index, or even extra proof!
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Science Facts to Surprise You!
This identify is stuffed with enjoyable and engaging technological know-how proof that could shock your little readers! a colourful, full-bleed picture accompanies each one enjoyable truth to draw these reluctant readers. entire with a desk of contents, word list, index, or even extra proof!
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These traits include some inheritable diseases. Inheritable diseases result from a mistake in the DNA that makes up a gene. The mistake makes the gene faulty. Faulty genes give cells the wrong instructions to follow. Sometimes these wrong instructions cause diseases. ” —Jeremy Cherfas, science writer, 2002 One of these diseases is Huntington’s disease. Huntington’s disease affects the human nervous system—the network consisting of the brain, spinal cord, and nerves. The gene that causes the disease is dominant.
But strangers can donate organs too. Left: A volunteer bone marrow donor gives a blood sample. Technicians will check the blood to see if it is a good match for the transplant recipient. Right: People can fill out organ donation cards so that family members and emergency workers will know they want to be donors. 45 Donation Even when the donor and recipient are a good match, the recipient’s body will try to reject the donated organ. So doctors give recipients drugs that weaken their immune systems.
A surgeon holds a liver that he will transplant into a patient. Doctors began doing liver transplants in the 1960s. 43 The First Sometimes people are born with organs that do not work well. Other times, serious illnesses damage healthy organs. And some people do not take good care of their bodies, which hurts their organs. People die when their major organs stop working. In modern times, doctors can replace many damaged organs with healthy organs from other people. The person who receives the organ is the recipient.