FORESTRY
PLANT AND WOOD ANATOMY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
tropism
|
|
|
hibernation
|
|
|
hydrotropism
|
|
|
phototropism
|
Detailed explanation-1: -Plants respond to their environment. They grow toward light. Plant leaves bud and seeds germinate when the temperature is right. Their roots and stems grow in certain directions in response to the pull of gravity.
Detailed explanation-2: -At the end of fall, most deciduous trees lose their leaves for the winter season. In fact, the word deciduous comes from the Latin word decidere, which means to fall down or off.
Detailed explanation-3: -Winter temperatures cause the production of auxin to slow down and this breaks the abscission layer, causing the leaves to detach from the trees. Losing leaves helps the tree to retain water during in the winter and means that it needs less energy to stay alive. The fallen leaves help to add nutrients to the soil.
Detailed explanation-4: -Trees shed leaves in the winter season to survive the harsh cold conditions. Shedding their leaves helps trees to conserve water and energy.