Life forms - qualitative characters, Biology

Assignment Help:

Life Forms - Qualitative Characters

The form and structure of terrestrial communities are determined by the nature of vegetation. Vegetation may be classified according to growth form. The plants may be tall or short, herbaceous or woody, evergreen or deciduous. We might speak of trees, shrubs, and herbs, and then further sub-divide these categories into needle-leaved evergreens, broad-leaved evergreens, broad-leaved deciduous, shrubs, ferns, grasses and so on and so forth.

A more useful system was proposed by a Danish botanist, Christen Raunkiaer in the year 1903. In this system, instead of considering plants' growth form, he classified plants by life form, the relation of their height above ground to their perennating organ. A perennating organ is one that survives from one growth season to the next, remaining inactive over winter or dry periods. Perennating tissue is the embryonic or meristematic tissue of buds, bulbs, tubers, roots and seeds.


Related Discussions:- Life forms - qualitative characters

Explains the difference among dominant and recessive alleles, Which of the ...

Which of the following best explains the difference among dominant and recessive alleles? A. The recessive allele encodes a protein with normal activity whereas the dominant al

Conduction system of the heart, Structure of the Conduction System of the H...

Structure of the Conduction System of the Heart Sinoatrial (SA) Node is the pacemaker node located in the right atrium near the opening of superior venacava. It is called

Procedure for define percentage of reducing and total sugar, Procedure For ...

Procedure For Define Percentage of reducing and total sugar by fehling soxhlet? 1. Standard titration (Standardization of Fehling's solution) - Titrate 10 ml of Fehling's solut

Explain some food applications of pectin, Explain Some food applications of...

Explain Some food applications of pectin As with other viscous polyanions such as carrageenan, pectin may be protective towards milk casein colloids, enhancing the properties (

Human physiology, which bones forms lhe non moving muscle attachment in

which bones forms lhe non moving muscle attachment in

Ecology, What is the role of ecology to the evolution theory.

What is the role of ecology to the evolution theory.

What is sustainability, What is sustainability? Sustainability is the a...

What is sustainability? Sustainability is the ability to meet human needsin a way that will allow a human population to survive indefinitely.

Explain change in body composition of infants, Explain Change in body Compo...

Explain Change in body Composition of infants? The weight gain comprise of growth in the muscle, organ tissue, adipose and skeletal structure. One compartment of body which reg

Explain the importance of nicotinic acid, Explain the Importance of nicotin...

Explain the Importance of nicotinic acid Nicotinic acid is successfully used in the therapy of a number of vascular disorders such as vascular spasms, angina pectoris, arthriti

Explain the economics in nutrition, Explain the Economics in Nutrition? ...

Explain the Economics in Nutrition? We mentioned earlier that nutritional problems affect the productivity of the individual, which, in turn affects the productivity of the nat

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