Biological adaptation, Biology

Assignment Help:

Biological Adaptation

These adaptations depend on the geology and basic fertility of the region and some of the mechanisms that are especially well developed in tropical rain forests are:

  • Root mats consisting of many fine feeder roots which penetrate the surface of the litter and quickly recover nutrients from leaf fall and rain before they are leached away. Root mats also inhibit the activity of denitrifying bacteria, thus preventing loss of nitrogen.
  • Mycorrhizal fungi associated with root systems act as nutrient traps and help in the recovery and retention-of nutrients. This symbiosis is also present in temperate forests of areas that are basically poor in nutrients.
  • Evergreen leaves have thick waxy cuticles that retard loss of water and nutrients, also leaves have pointed tips or 'drip tips' that drain off water fast, thereby reducing leaching of leaf nutrients.
  • Algae and lichens that cover surfaces of many leaves pick up nutrients from rainfall some of which becomes available to the leaves immediately. Lichens also fix nitrogen.
  • Thick bark inhibits diffusion of nutrients out from the phloem and subsequent loss by stem flow i.e., rain running down the trunks of trees.

Related Discussions:- Biological adaptation

How do ascaris obtain food, Q. How do ascaris obtain food? An ascaris l...

Q. How do ascaris obtain food? An ascaris live within the human gut and feed from the food ingested by the infected person.

Difference between essential and natural amino acids, What is the differenc...

What is the difference between essential and natural amino acids? Ans) Significant amino acids are those that the organism is not able to synthesize and that require to be inges

Tools of lower paieolithic age, Tools of lower paieolithic age Pleistoc...

Tools of lower paieolithic age Pleistocene times there were huge herds of very large mammals. Bones of such large mammals were found associated with the human fossil finds and

Adults with infective endocarditis, Mitral valve prolapse (MVP) has emerged...

Mitral valve prolapse (MVP) has emerged as a prominent, predisposing structural cardiac abnormality and in adults accounts for 7 to 30 per cent of NVE in cases not related to drug

Reproductive organs, Reproductive Organs In several metazoans, gonads ...

Reproductive Organs In several metazoans, gonads are well-defined. Testes and ovaries take up dissimilar shapes and anatomical dispositions. In cases of certain hermaphrodites

Protozoa phylum, wht is the main quality of this phylum

wht is the main quality of this phylum

Define the prevention of diseases - function of vitamin e, Define the Preve...

Define the Prevention of diseases - Function of Vitamin E? Because of its anti-oxidant function and its role in inhibiting cell proliferation of smooth muscles, vitamin E can b

Determine the blood plasma levels of oxytocin, Which of the following serve...

Which of the following serves as an actuating signal, or as part of an actuating signal, in a system with feedback? (Either positive feedback or negative feedback) A. Blood pla

Rabbit, reproductive system of rabbit

reproductive system of rabbit

What is the constitution of the cartilaginous matrix, Q. What is the consti...

Q. What is the constitution of the cartilaginous matrix? The cartilaginous matrix is made of generally collagen type II, collagen fibers, and of proteoglycans, proteins associa

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