This is for stupid xueli whom forgot to bring her notes back home .
Tropical rain forests
Leaves
1. Due to high rainfall throughout the year, the trees have waxy and drip-tip leaves in order to effectively drain away excess rainwater to prevent decomposition caused by bacteria growth.
2. Due to high temperature and high rainfall, the forest grows well leading to a dense vegetation. Thus, the trees have broad leaves in order to maximise the surface area to absorb he maximum sunlight for photosynthesis as they compete for sunlight.
3. Due to high temperature and high rainfall, the forest grows well leading to a dense vegetation. Thus,the trees are evergreen in order ti photosynthesize all year round in the absence of dry season. (Not an adaptation)
Branches
1. Due to high temperature and high rainfall, the forest grows well leading to a dense vegetation. Thus, the trees have branches growing at top 1/3 of the tree in order to compete for sunlight with order neighbouring trees.
Fruits
1. Due to high temperature and high rainfall, the forest grows well leading to a dense vegetation that prevent wind from entering the vegetation. Thus, the trees have fruits that are sweet smelling in order to attract animals to consume the fruits and disperse the seeds by excretion.
Bark
1. Due to the absence of extreme(hot and cold) temperature, the trees have thin bark, in orrder to conserve energy for other purposes instead of making the bark thicker. (Not an adaptation)
Roots
1. Due to the high rainfall, the trees have shallow roots, in order to absorbrainwater as soon as it reaches the ground. There is no need to waste energy by growing deep roots to take in ground water. (Not an adaption)
2. Due to the high rainfall and high temperature, tree trunks grow very thick and tall. Thus, the trees have buttress roots that are big and wide-spreading in order to support the great height and weight of trees to prevent them from toppling off.

Tropical Monsoon Forest
Leaves
1. Due to the high rainfall during the wet season the trees have waxy and drip-tip leaves in order to effectively drain away excess rainwater to prevent decomposition caused by bacteria growth.
2. Due to the dry season, the bamboo trees have narrow leaves in order to reduce surface area which slows down the rate of water loss through transpiration.
3. Due to the dry season, the trees are deciduous and shed their leaves in order to minimize water loss through transpiration due to the absence of leaves.
Branches
1. Due to the dry season, not many trees can grow leading to a sparse vegetation. Thus, the trees have branches that start to grow at half of the tree height in order to maximize photosynthesis since sunlight can reach th lower portion of the sparse forrests. (Not an adaptation)
Bark
1. Due to the dry season, the trees have thick bark in order to protect the trees against the heat produced by the forest fires. (e.g Eucalyptus trees)
Roots
1. Due to the dry season. the trees have deep tap roots, in order to reach out for underground water that are left over during the previous wet season.

Okay, done -_-. All these are from mr teo's note. You study these first bahhs . Tomorrow then chiong the others . =__=!
All are adaptations unless otherwise stated.