Prodigality of nature, Biology

Assignment Help:

By prodigality of nature it is meant that organisms have an enormous potential to reproduce. A carp or salmon is known to lay over a million eggs. A frog may lay Bs many as 12,000 eggs. If all the eggs survive and reproduce, then within a short time the entire earth would be strewn with frogs. Darwin himself worked out the reprodilcti-We rates of elephants which are known as slowest breeders of all known animals.

Assuming an elephant during its 100 years of existence gives bjrth to six calves in sixty years of its active reproductive life, in around 750 years there should be at least 19 million elephants living in the world. Several such examples could be quoted to highlight the fact that organisms have an immense potential for reproduction.

How is it that in spite of an enormous potential to reproduce, the numbers of most of the species are always maintained at optimal levels? How is it that lakes are not choked with fishes, or fields not strewn with frogs or the earth not crowded with elephants? This is because that various limiting factors in the environment, both biotic and abiotic, keep a check on the increase in numbers.


Related Discussions:- Prodigality of nature

Zoonoses disease-feline cowpox, Feline cowpox Feline cowpox virus is an un...

Feline cowpox Feline cowpox virus is an uncommon virus which causes skin lesions in cats. These viruses are said to be “cowpox-like”. The biological and genetical analysis showed

Alkoloids, what do you mean by alkoloids how are they usedin daily life wha...

what do you mean by alkoloids how are they usedin daily life what are the different types of alkoloids?

What essential function do they serve, Why do membranes figure so prominent...

Why do membranes figure so prominently in eukaryotic cells? What essential function do they serve?

What are restriction enzymes, What are restriction enzymes? How do these en...

What are restriction enzymes? How do these enzymes participate in the recombinant DNA technology? The Restriction enzymes, or restriction endonucleases, are enzymes specialized

Prawn, green gland in prawn

green gland in prawn

Define technique of paper chromatography, Define Technique of Paper chromat...

Define Technique of Paper chromatography? Paper chromatography is used as 1. Ascending, 2. Descending or 3. Horizontal technique (circular paper chromatography) It is De

Study of phylems, iwant to know all about phylem protozoa?

iwant to know all about phylem protozoa?

Which term describes organisms which live in lake/ocean, Which term is used...

Which term is used to describe organisms that live on or in the bottom of an ocean or lake. Such organisms can be found anywhere from the shoreline to greatest ocean depths? a)

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