10 Points For Best Answer .?

Question

The shape and structure of the leaves of many desert

plants reduce their rate of water loss. In cacti, for example,

the leaves have been drastically reduced and modified into

spines. Many of the adaptations that are found in plants

growing in northern countries. Explain how an evergreen tree

adapted to life in a cold climate .

Answer 1

Evergreen is a misnomer- as tropical plants such as palm tree are by classifaction an evergreen.

The correct wording here is conifer tree such as a pine tree, and its because of the low nutirents in the soil and the lack of available water that has made these trees adapted for cold weather.  

The neeldle like leaves of a conifer have flat surfaces that allow for maxium light absorbation, and in the leaves, the stomata are in lines or patches on the leaves, and can be closed when it is very dry or cold to reduce water evapoiton.. The leaves are often dark green in colour which may help absorb a maximum of energy from weak sunshine at high latitudes or under forest canopy shade. Also because at cold climates, the availibty of nutirents are not usually as high, so loosing their leaves every year would make the tree loose it nutients and the availibity to produce food.