Question

Some trees shed their leaves in time for winter. Why is this adaptation useful?
The trees save energy during the darker, colder months.
The trees take in more sunlight through their branches.
The trees attract animals to spread their seeds.
The trees blend into their environment and hide.

Answer 1

Answer:

The tree’s bark acts as its first line of defence against the cold. The outer bark protects the tree from disease, insects, storms, and extreme temperatures. It is full of air spaces and works like insulation for the tree. It is similar to the insulation in the walls of your home.

Tree leaves also have adaptations for cold temperatures.  

The leaves of a tree are where photosynthesis takes place. This is the process in which plants use the energy from sunlight to chemically combine carbon dioxide and water to form sugars. Trees then use these sugars for energy.  

The other important process that happens in leaves is transpiration. Leaves have openings called stomata (plural of stoma). These openings are controlled by guard cells, which can open and close the stomata. During transpiration, oxygen gas and water vapour leave the tree from the stomata. As water leaves the stomata, more water is pulled up from the roots through the xylem. This is why water can flow upward in a tree!

Explanation: