Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
In order to define growth limit logistic equation was given by Verhulst. In a given ecosystem, the maximum population that can exit is called carrying capacity (k). The factors which affect carrying capacity are food, habitat and water present in that particular ecosystem.
The change in population with time is represented by following logistic equation.
Where
N = Change in size of growing population
N =Initial population
T =Time
R =growth rate
K =carrying capacity
1. The Difference between maximum population (K) and that which already exists is equal to (K-N).
2. As existing population approaches maximum the value of (K-N) will become smaller. More resistance would be encountered because of less available space and resources in that ecosystem. Therefore according to Logistic equation the intrinsic rate of natural increase (r) would reduce progressively as population increases towards carrying capacity (K)
From above equation it is clear that factor acts against the rate of increase of population (rN).
Case 1: When value of N is negligible, the value of = 1 and population will grow rapidly.
Case 2: When value N ~ K (assuming r to be constant). The value of ≈ 0. Hence,
There will not be any growth in population and population will become stable of stationary.
main external morphological feature that differentiates platyhelminthes from nematodes
Draw a diagram of transverse section of the spinal cord showing reflex are and label the following parts: (i) Afferent nerve fibre (ii) Grey matter (iii) Motor nerve fibre
Q. Etiology of constipation? The etiology and management of two distinct disorders of the bowel viz., diarrhoea and constipation. We small continue our discussion on certain ot
Prothoracic Gland or PTC Prothoracic gland (PTC) or moulting gland and ecdysone or moulting hormone The 3 rd endocrine gland-prothoracic gland- is an irregular branching
Define Drug effects on Lipid Metabolism? Drugs can affect the metabolism of various essential nutrients in the body. These impairments are highlighted herewith: Lipid metabo
1. The genes for ruby eyes (rb), tan body (t) and cut wings (ct) are all found on the X-chromosome of Drosophila melanogaster. All of these are recessive traits. They map in the or
What are plant cell vacuoles? What are their functions? How is the covering membrane of the vacuoles called? Ans) Plant cell vacuoles are cell structures delimited by membranes
i need to create a 20 organism forest ecosystem, help?
What is Phylum Platyhelminthes - Flatworms ? This Class consists of the free-living flatworms, the best known of which is the Genus Planaria. Most of the species in this class
Explain what is Light Microscope - Microscopy Modern light microscopes are compound microscopes. Here the magnified image formed by the objective lens is further enlarged by on
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd