7. What are some of the roles/functions of primary vegetation in modern day Singapore? Click all that apply. (1 mark) Provides timber wood provides habitats for colugo. Cools the surrounding areas. provides homes for tapir Provides fruits and leaves for frugivores. 8. Which of the following is/are true? (1 mark) Water in the freshwater swamp forest is even more acidic than peat swamp forest. There are only native organisms in the mangroves. Introducing exotic species of plants is a good thing to replace the species lost here. We need high biodiversity. If the natives have gone extinct, might as well introduce exotics. During the last ice age, it was possible to walk from Singapore to Sulawesi. A herbaceous climber species cannot become a woody climber later as the plant ages. 9. Which of the following is/are true? (1 mark) A hemi-parasite can photosynthesize. Only a true parasite cannot. When one goes traveling and observes at a site that the tree diversity is low and all about the same distance apart from each other and all about the same stature. One can assume that it is a secondary vegetation and likely a managed one as well. Trema belukar soil is richer in nutrients than an adinandra belukar soil. The first person to describe adinandra belukar was H. N. Ridley. Primary forest with lower species diversity can increase its species richness if there are fruit dispersers that will eat the fruits from another primary forest and bring the fruits back to the low diversity forest.