In Australia, marsupials and placental mammals have evolved to share many similar characteristics. This type of evolution may be referred to as :
- Adaptive Radiation
- Divergent Evolution
- Cyclical Evolution
- Convergent Evolution
The Correct Option is D
Solution and Explanation
When more than one adaptive radiation appeared to have performed in an isolated geographical area that is representing different habitats, is known as convergent evolution.
Top Questions on Mechanism Of Evolution
- What is the name of Darwin's ship which he used for world voyage ?
- TS POLYCET - 2023
- Biology
- Mechanism Of Evolution
- Hugo de Vries gave his mutation theory on organic evolution while working on
- JIPMER - 2018
- Biology
- Mechanism Of Evolution
- The concept of chemical evolution is based on
- AIIMS - 2010
- Biology
- Mechanism Of Evolution
- The classical example of adaptive radiation in development of new species is
- UP CPMT - 2004
- Biology
- Mechanism Of Evolution
- Random genetic drift in a population probably results from
- NEET (UG) - 2003
- Biology
- Mechanism Of Evolution
Questions Asked in NEET exam
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector \(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
- Magnetic Field
- Given below are two statements:
Statement I: Mitochondria and chloroplasts both double membranes bound organelles.
Statement II: Inner membrane of mitochondria is relatively less permeable, as compared chloroplast. I
In the light of the above statements, choose the mis appropriate answer from the options given below- NEET (UG) - 2024
- Cell structure and organelles
- Match List I with List II:Choose the correct answer from the options given below:
List I
List II
A Mesozoic Era I Lower invertebrates B Proterozoic Era II Fish & Amphibia C Cenozoic Era III Birds & Reptiles D Paleozoic Era IV Mammals - NEET (UG) - 2024
- Origin Of Life
- A parallel plate capacitor is charged by connecting it to a battery through a resistor. If I is the current in the circuit, then in the gap between the plates :
- NEET (UG) - 2024
- Capacitors and Capacitance
- The terminal voltage of the battery, whose emf is\(10V\) and internal resistance \(1\), when connected through an external resistance of \(42\) as shown in the figure is:
- NEET (UG) - 2024
- Resistance and Resistivity
Concepts Used:
Mechanisms of Evolution
The mechanism of evolution has been explained with theories such as the Big Bang Theory, the Theory of Darwin, and the Hardy-Weinberg Equilibrium where evolution is the process of natural selection that causes changes in the traits of species over multiple generations.
The Big Bang Theory:
The most widely accepted theory for the origin of life on Earth and its various forms is the Big Bang Theory. According to the hypothesis, as a result of a massive explosion, the universe was created 20 billion years ago.
Hardy-Weinberg Equilibrium:
According to the idea of Hardy-Weinberg, allelic frequency and gene pool remain stable throughout generations. Furthermore, the allelic frequencies add up to 1.
Theory of Darwin:
The Theory of Darwin's natural selection hypothesis provided a more reasonable explanation for the emergence of new species. As a result of adaptation to changing environmental conditions, natural selection led to the evolution of multiple species from a single species.