How the age of a tree can be estimated, Biology

Assignment Help:

How the age of a tree can be estimated from the analysis of the rings present on a cross section of its stem?

For the growth of the tree it is essential to have formation of new vessels within the stem, a task performed by the vascular cambium. The vascular cambium is more dynamic in hot seasons (spring and summer) generating a lighter band made of large calibered vessels. During the winter and fall the vascular cambium produces the opposite, so small calibered vessels and a darker band appear outside the previous lighter band. Consequently two ring bands are made yearly, one lighter and the other darker. By a straight count of these band pairs one can estimate the age of the tree.

 


Related Discussions:- How the age of a tree can be estimated

Explain the universality of the genetic code, How does the universality of ...

How does the universality of the genetic code make the recombinant DNA technology possible? The universality of the genetic code refers to the fact that all living beings have

Define some major source of sodium and chloride, Define some major source o...

Define some major source of sodium and chloride? The major source of sodium and chloride is common salt added to our food in the form of sodium chloride. Naturally occurring so

Chemical composition of chromatin, CHEMICA L COMPOSITION OF CHROMATIN ...

CHEMICA L COMPOSITION OF CHROMATIN Chromatin threads composed of DNA (31 %), RNA (2-5%) and proteins (Histon-36%, Non histon 28%). Histone and protamines are basic prote

Assessment - steps in nursing process, Assessment This includes the da...

Assessment This includes the data collection (nursing history and physical assessment), comparison of data with the normal, and analysis of the data gathered. Systematic an

What is endocrine system explain, What is Endocrine System explain ? Th...

What is Endocrine System explain ? The endocrine system consists of glands, organs that secrete hormones. Endocrine glands are tissues that produce secretions within the body,

Define reaction of fehling soxhlet method, Define Reaction of Fehling Soxhl...

Define Reaction of Fehling Soxhlet method? The reducing sugars formed are acted upon by the alkali of Fehling's solution to form enediols. These enediols are very unstable and

Agro industrial-potassium, Potassium Potassium, the third most abundan...

Potassium Potassium, the third most abundant mineral in the body, is the major cation in intracellular fluid. Forages are excellent source of potassium, usually containing 1 t

Why is the occurrence of eyelids in amphibians, Why is the occurrence of ey...

Why is the occurrence of eyelids in amphibians in comparison to their absence in fishes and adaptation to terrestrial life? Eyelids associated to lacrimal glands protect and ke

What is molecular biology, Molecular Biology Transgenesis: pro-nucl...

Molecular Biology Transgenesis: pro-nuclear injection of isolated gene into fertilised egg cell, cell divides to form embryo, then embryo implanted into surrogate.

Incomplete digestive and a complete digestive system system, Q What is the ...

Q What is the difference between an incomplete digestive and a complete digestive system system? How are these types of digestive tubes associated or not to extracellular digestion

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd