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نموذج 8 بالحل





Question of chapter : Training 1

1.Nucleus is:

. () an organelle. () Protoplasm. () cytoplasm. () molecule. () None of the above




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2.Which of the following in not a producer?

. () Leopard. () Mango tree. () Mangrove. () Grass. () Harmal




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3.Evolutionary adaptation means acquisition of _______ that best suit the organism to its environment.

.characteristics. () traits. () features. () adjectives. () A and B and C choices are correct




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4.The --------------- must be testable and falsifiable

. () theories. () discovery science. () hypotheses. () observations. () evidence




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5.The part of the atom that orbits the nucleus is the

. () proton. () neutron. () electron. () anion. () cation



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6.All of the following are organic compound except:

. () methane.. () calcium hydroxide.. () protein. () fat.. () phospholipids.




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7.Acid precipitation has bad effects on ________.

. () coral reef. () plant life. () ocean chemistry. () ecosystem. () all of the above




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8.The formula of the hydroxyl group is

. () OH. () NH2. () COOH. () CO. () CH3




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