HCI 2023 JC2 9744 H2 Bio Prelim P3 QP (Sharing)

© Hwa Chong Institution 2023 9744 H2 Biology / JC2 Preliminary Examinations / Paper 3 HWA CHONG INSTITUTION JC2 Preliminary Examinations Higher 2 CANDIDATE NAME CT GROUP 22S7__ CENTRE NUMBER INDEX NUMBER BIOLOGY Paper 3 Long Structured Questions and Free-response Questions Candidates answer on the Question Paper. No Additional Materials are required. 9744/03 13 September 2023 2 hours INSTRUCTIONS TO CANDIDATES There are four question booklets (I - IV) to this paper. Write your name, CT group, Centre number and index number in the spaces provided at the top of this cover page and on the lines provided at the top of the cover pages of Booklets II, III and IV. Section A Answer all questions in the spaces provided on the Question Paper. Section B Answer any one question in the spaces provided on the Question Paper. INFORMATION FOR CANDIDATES The use of an approved scientific calculator is expected, where appropriate. You may lose marks if you do not show your working or if you do not use appropriate units. The number of marks is given in brackets [ ] at the end of each question or part question. You are reminded of the need for good English and clear presentation in your answer. This document consists of 21 printed pages and 1 blank page. For Examiners' Use Section A 1 / 30 2 / 10 3 / 10 Section B 4 or 5 / 25 Final Mark

2 © Hwa Chong Institution 2023 9744 H2 Biology / JC2 Preliminary Examinations / Paper 3 SECTION A Answer all the questions in this section. QUESTION 1 Migratory behaviour is commonly defined as the movement from one location to another and back, allowing animals to exploit seasonally - and geographically-variable resources or avoid unfavo urable conditions. Migratory animals are significantly threatened by the effects of habitat fragmentation and habitat loss. In the case of terrestrial mammals, this results in nearly a quarter of species being at risk of extinction. The reindeer is one such example. In populations of reindeer, the proportion of individuals considered as “migrants” can vary dramatically. There is therefore a possibility that, under the condition that migratory behavior is genetically determined, those individuals or populations that are migratory will be further impacted by humans, and this impact could result in the permanent loss of the migratory trait in some populations. Two subspecies of reindeer, Rangifer tarandus , can be found in North America. Members of the different subspecies belong to the same species but have some morphological d ifferences and are found in different geographical locations. Fig. 1.1 shows a reindeer. Fig. 1.1 Table 1.1 compares the features of the two North American reindeer subspecies. Table 1.1 feature Woodland subspecies, R. tarandus caribou (WS) Barren Grou