What evidence is there in Figure 4 to support this view 2 marks 6 b iii Suggest

What evidence is there in figure 4 to support this

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What evidence is there in Figure 4 to support this view? [2 marks] ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ 6 (b) (iii) Suggest one other piece of information about legal drugs that would need to be considered before the classification of these drugs was changed. [1 mark] ............................................................................................................................................ ____ 8 Turn over
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14 Do not write outside the box G/Jun14/BL1HP (14) 7 Figure 5 shows: Phiomia, an ancestor of elephants a modern African elephant. Phiomia lived about 35 million years ago. Figure 5 Phiomia African elephant Long nose Trunk Both Phiomia and the African elephant reach up into trees to get leaves. In the 1800s, Darwin and Lamarck had different theories about how the long nose of Phiomia evolved into the trunk of the African elephant. 7 (a) (i) Use Darwin’s theory of natural selection to explain how the elephant’s trunk evolved. [4 marks] ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................
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15 Do not write outside the box G/Jun14/BL1HP Turn over (15) 7 (a) (ii) Lamarck’s theory is different from Darwin’s theory. Use Lamarck’s theory to explain how the elephant’s trunk evolved. [2 marks] ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ 7 (b) (i) In the 1800s, many scientists could not decide whether Lamarck’s theory or Darwin’s theory was the right one. Give two reasons why. [2 marks] 1 ......................................................................................................................................... ............................................................................................................................................ 2 ......................................................................................................................................... ............................................................................................................................................ 7 (b) (ii) Before the 1800s, many people had a different idea to explain where all the living things on Earth came from. What idea was this? [1 mark] ............................................................................................................................................ ............................................................................................................................................ ____ 9 Turn over for the next question
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16 Do not write outside the box G/Jun14/BL1HP (16) 8 Read the information. Insects can be both useful and harmful to crop plants. Insects such as bees pollinate the flowers of some crop plants. Pollination is needed for successful sexual reproduction of crop plants. Some insects eat crops and other insects eat the insects that eat crops. Corn borers are insects that eat maize plants. A toxin produced by the bacterium Bacillus thuringiensis kills insects. Scientists grow Bacillus thuringiensis in large containers. The toxin is collected from the containers and is sprayed over maize crops to kill corn borers. A company has developed genetically modified (GM) maize plants. GM maize plants contain a gene from Bacillus thuringiensis . This gene changes the GM maize plants so that they produce the toxin. 8 (a) Describe how scientists can transfer the gene from Bacillus thuringiensis to maize plants. [3 marks] ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................ ............................................................................................................................................
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17 Do not write outside the box G/Jun14/BL1HP (17) 8 (b) Would you advise farmers to grow GM maize plants? Justify your answer by giving advantages and disadvantages of growing GM maize plants. Use the information from the box and your own knowledge to help you.
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