Who wrote the famous book �Origin of Species�?
- Lamarck
- Darwin
- De Vries
- Mendel
The Correct Option is B
Solution and Explanation
Top Questions on Evolution
- Define Adaptive Radiation and give examples like Darwin's Finches.
- HBSE Class 12 - 2026
- Biology
- Evolution
- On which island group did Darwin observe finches?
ডারউইন কোনটিকে 'প্রকৃতির খেলা' রূপে আখ্যায়িত করেছিলেন?
সমবয়ী অঙ্গের বিবর্তনকে বলা হয়
একটি মৌমাছি কীভাবে শ্রমিক মৌমাছি অন্য শ্রমিক মৌমাছিদের খাদ্য উৎসের বার্তা দেয় ব্যাখ্যা করো। ডারউইনের অভিব্যক্তি সংক্রান্ত তত্ত্বের তিনটি বিষয় ব্যাখ্যা করো — প্রাকৃতিক নির্বাচন, অস্তিত্বের জন্য সংগ্রাম, প্রকরণের উৎপত্তি।
Questions Asked in WBJEE exam
What are the charges stored in the \( 1\,\mu\text{F} \) and \( 2\,\mu\text{F} \) capacitors in the circuit once current becomes steady?
- WBJEE - 2026
- Capacitors and Capacitance
Which one among the following compounds will most readily be dehydrated under acidic condition?
- WBJEE - 2026
- Organic Reactions
Manufacturers supply a zener diode with zener voltage \( V_z=5.6\,\text{V} \) and maximum power dissipation \( P_{\max}=\frac14\,\text{W} \). This zener diode is used in the circuit shown. Calculate the minimum value of the resistance \( R_s \) so that the zener diode will not burn when the input voltage is \( V_{in}=10\,\text{V} \).
- WBJEE - 2026
- Zener Diodes
Two charges \( +q \) and \( -q \) are placed at points \( A \) and \( B \) respectively which are at a distance \( 2L \) apart. \( C \) is the midpoint of \( AB \). The work done in moving a charge \( +Q \) along the semicircle CSD (\( W_1 \)) and along the line CBD (\( W_2 \)) are
- WBJEE - 2026
- electrostatic potential and capacitance
A piece of granite floats at the interface of mercury and water. If the densities of granite, water and mercury are \( \rho, \rho_1, \rho_2 \) respectively, the ratio of volume of granite in water to that in mercury is
- WBJEE - 2026
- Buoyancy and Floatation
Concepts Used:
Evolution
Evolution is a process that occurs in changes in the genetic content of a population over time. Evolutionary change is generally classified into two: microevolution and macroevolution. The process of changes in allele frequencies in a population over time is a microevolutionary process. Three main mechanisms that cause allele frequency change are natural selection, genetic drift, and gene flow. On the other hand, macroevolution refers to change at or above the level of the species.