'Ecology’ was coined by a follower of Charles Darwin who was a known Zoologist. He suggested new ideas of human evolutionary descent. He claimed that the ontogeny (the embryology and development of the individual) had been briefly, and often necessarily incomplete, recapitulated, or repeated, phylogeny (the evolutionary history of the species or race).
The term ecology was coined by Ernst Haeckel, in 1866.
Ecology deals with the study of the dependence and interaction of organisms with their environment. The term ecology is believed to have been coined by Ernst Haeckel although its first authentic use was made by Reiter in 1885. The word originates from the Greek word ‘oikos’, meaning a "place to live."
Brief History:
Also Read: Principles of Inheritance & Variation
A convex lens has power \( P \). It is cut into two halves along its principal axis. Further, one piece (out of two halves) is cut into two halves perpendicular to the principal axis as shown in the figure. Choose the incorrect option for the reported lens pieces.
The equation \[ 2 \cos^{-1} x = \sin^{-1} \left( 2 \sqrt{1 - x^2} \right) \] is valid for all values of \(x\) satisfying:
A metallic sphere of radius \( R \) carrying a charge \( q \) is kept at a certain distance from another metallic sphere of radius \( R_4 \) carrying a charge \( Q \). What is the electric flux at any point inside the metallic sphere of radius \( R \) due to the sphere of radius \( R_4 \)?
The circuit shown in the figure contains two ideal diodes \( D_1 \) and \( D_2 \). If a cell of emf 3V and negligible internal resistance is connected as shown, then the current through \( 70 \, \Omega \) resistance (in amperes) is:
Population ecology is the study of these and other questions about what factors affect population and how and why a population changes over time. Population ecology has its deepest historic roots, and its richest development, in the study of population growth, regulation, and dynamics, or demography. Human population growth serves as an important model for population ecologists, and is one of the most important environmental issues of the twenty-first century. But all populations, from disease organisms to wild-harvested fish stocks and forest trees to the species in a successional series to laboratory fruit files and paramecia, have been the subject of basic and applied population biology.