The evidence (T)Online version Relate the evidence with what they allow to infer. From the video: "The day the Mesozoic died" https://youtu.be/scOavLZKsCA by Jorge Arizpe 1 The KT line marks a major change in the fossil record of foraminifera. This suggests that ... a The extinction of Foraminifera caused the appearance of the KT line. b The foraminifera were the direct food of the dinosaurs that became extinct at the same time. c The event that formed the KT line has no relationship with the foraminifera. d The event that formed the KT line also caused a change in foraminifera populations. 2 The change in foraminifera fossils occurred at the same time that the dinosaurs disappeared. This suggests that ... a The extinction of foraminifera has no relation to dinosaurs. b The extinction of foraminifera and dinosaurs could have been caused by the same event. c The extinction of foraminifera caused the extinction of dinosaurs. d The extinction of dinosaurs caused the extinction of foraminifera. 3 The KT limit contains 30 times more iridium than the average crust. Iridium is more common in space. This suggests… a The KT event its related to Tsunamis. b The KT event its related to volcanic eruptions. c The KT event its related to a space phenomenon. d The KT event is related to the spontaneous emergence of iridium in the earth's own crust. 4 The amount of iridium suggests that the meteorite must have measured 10 km in diameter. This suggests that ... .. a The crater formed must have been very large. b The crater formed could have been small c The crater could have completely disappeared d The crater has no relation with the size of the meteorite. 5 It is believed that the impact of the meteorite caused great Tsunamis. In Texas there is a site near the KT line where there are large rocks originating from different places. This suggests that ... a Tsunamis were common in Texas. b Tsunamis extinguished the foraminifera. c Tsunamis caused the formation of rocks of different sizes. d Tsunamis moved rocks from different places that ended up together. 6 Above the KT limit there are many spores of ferns. This suggests that ... a The ferns increased because the dinosaurs no longer ate them. b Ferns were among the first plant populations to be restored after the KT event. c Ferns werent affected by the KT event. d The ferns were not among the first plant populations to be restored after the KT event. 7 In Hell Creek there are dinosaur fossils below the KT line, but they have not been found above this line. This evidence suggests ... a The KT event destroyed fossils above the line. b The KT event caused the dinosaurs to migrate from Hell Creek. c The extinction of the dinosaurs is not related to the KT event. d The extinction of dinosaurs is related to the KT event. 8 The anatomical similarity in the upper extremity of mammals suggests that ... a The groups of mammals are not related between them. b The groups of mammals are related between them. c Groups of mammals developed their upper limb independently. d The groups of mammals feed from different things. 9 African ostriches are genetically related to birds from South America and Australia. This evidence suggests ... a South America, Africa and Australia were united. b Ostriches could fly. c Ostriches could swim. d South America, Africa and Europe were united. 10 Foods take longer to decompose when they are refrigerated. This suggests that ... a In refrigerators, food is less exposed to contamination by bacteria and fungi. b The temperature of the food is related to the decomposition time. c The dark environment of the refrigerators causes a longer decomposition time. d The room temperature causes a longer decomposition time in food. 11 The water in my aquarium "loses" more water in summer. This suggests that ... a The summer weather does not affect the evaporation of the aquarium water. b The summer weather makes the fish more active and consume more water from the aquarium. c The summer weather affects the evaporation of the aquarium water. d The summer weather causes aquarium plants to consume more water. 12 The Chicxulub crater is 65 million years old just like the KT line. This suggests that ... a The Chicxulub crater is in the Yucatán peninsula. b The Chicxulub crater is very old. c The Chicxulub crater is not related with the KT line. d The Chicxulub crater is reated to the KT line. 13 Scientists have found many fossils of small animals after the KT event. This suggests that ... a Small animals were not better adapted to survive the new environment. b Small animals were better adapted to survive the new environment. c The animals became smaller by the shock waves of the meteorite. d Small animals werent affected by the KT event. 14 The presence of shocked quartz on the KT line is evidence that ... a The KT event is not related to a high energy shock. b Quartz is very abundant on earth. c The asteroid that caused the KT event was made of quartz. d The KT event is related to a high energy shock.
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