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

Medical therapy for tricuspid stenosis, Q. Medical therapy for tricuspid st...

Q. Medical therapy for tricuspid stenosis? Medical therapy is ineffective. With diuretics, symptoms of congestion are replaced by that of low cardiac output state. Occasional c

On whcih factor photosynthesis rate depends, Q. Photosynthesis rate varies ...

Q. Photosynthesis rate varies as per to the photic energy intensity. Does the same take place in aerobic respiration? What do happen to the glucose balance as a result of these var

How is the cooling of tissues and organs, Q. How is the cooling of tissues ...

Q. How is the cooling of tissues and organs for medical transplants associated with the effect of temperature upon enzymatic reactions? The molecular degradation during the dec

Define the prevalence and incidence of bulimia nervosa, Define the Prevalen...

Define the Prevalence and Incidence of bulimia nervosa? Bulimia nervosa appears to have become more prevalent during the past 30 years. We do not have much data on Indian popul

Unconventional oilseed cakes/meal, Unconventional oilseed cakes/meal ...

Unconventional oilseed cakes/meal Deoiled sal (Shorea robusta) seed meal: It is a byproduct obtained after the extraction of oil from sal seeds. It is found to be high in NF

What is a biome, What is a biome? A biome is the prevailing ecosystem c...

What is a biome? A biome is the prevailing ecosystem constituted by similar abiotic and biotic factors present in one or more regions of the planet.

Explain about the amino acids and proteins, Explain about the Amino Acids a...

Explain about the Amino Acids and Proteins? We shall now study the properties of amino acids which we know are the building blocks of proteins.  In this practical, we shall car

Mitochondrial membrane, Fatty acid breakdown happens in the cytosol of prok...

Fatty acid breakdown happens in the cytosol of prokaryotes in plants in peroxisomes and in the mitochondrial matrix of all other eukaryotes.  By entering the mitochondrial matrix,

Interpretation of blood or serum nutrient value in pregnancy, Define Interp...

Define Interpretation of blood or serum nutrient values in pregnancy? Interpretation of blood/serum nutrient values in pregnancy is therefore complex compared to the non-pregn

Hormones secreted by pituitary gland, (a) Hormones of the Anterior lobe - ...

(a) Hormones of the Anterior lobe - The anteriorIobe of the pituitary gland secretes the following hormones, most of them are trophic hormones. (i ) Somatotropic hormone o

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