why do the topical deciduos forests shed thier leaves during the summer seasn ?name two such trees.
Answers
Answer:
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Explanation:
Tropical deciduous forests shed their leaves for about six to eight weeks in summer. As this is a hot-dry season, the leaves get dry due to high temperature and deficiency of moisture causing these trees to shed their leaves.
Answer:
Trees that lose all of their leaves for part of the year are known as deciduous trees and those that don’t are called evergreen trees. Many trees shed their leaves as a strategy to survive severe weather conditions. In temperate forests, trees shed their leaves during autumn as cold weather approaches and in tropical and subtropical forests, trees shed their leaves at the onset of the dry season. Most deciduous trees have broad leaves that are susceptible to being damaged during cold or dry weather. In contrast, most evergreen trees have weather-resistant needles for leaves.
Shedding leaves helps trees to conserve water and energy. As unfavorable weather approaches, hormones in the trees trigger the process of abscission (to cut) whereby the leaves are actively cut-off of the tree by specialized cells. At the start of the abscission process, trees reabsorb valuable nutrients from their leaves and store them for later use in their roots. Chlorophyll, the pigment that gives leaves their green colour is one of the first molecules to be broken down for its nutrients. This is one of the reasons why trees turn red, orange, and gold colors during the fall. At the end of the abscission process, when the leaves have been shed, a protective layer of cells grows over the exposed area.
Explanation:
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