Which of the following statements is correct regarding the history of life on Earth?
- A$99\%$ of species that have ever existed are now extinct.
- B$25\%$ of species that have ever existed are now extinct.
- C$40\%$ of species that have ever existed are now extinct.
- D$30\%$ of species that have ever existed are now extinct.
Explore More
Similar Questions
Which of the following represents the correct evolutionary sequence of the heart?
Easy
View SolutionThe $Malay$ $Archipelago$ stands for:
Medium
View SolutionDarwinian theory was unable to explain:
Medium
View SolutionMatch the name of the scientist in Column $I$ with the name of the theory in Column $II$.
Column $I$ Column $II$ $1$. August Weismann $a$. Theory of origin of species $2$. Hugo de Vries $b$. Theory of chemical evolution $3$. Charles Darwin $c$. Theory of continuity of germplasm $4$. Oparin and Haldane $d$. Mutation theory
Choose the correct option.
| Column $I$ | Column $II$ |
| $1$. August Weismann | $a$. Theory of origin of species |
| $2$. Hugo de Vries | $b$. Theory of chemical evolution |
| $3$. Charles Darwin | $c$. Theory of continuity of germplasm |
| $4$. Oparin and Haldane | $d$. Mutation theory |
Choose the correct option.
The splint bone of the present-day horse is a vestige of which digit?
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo