Select the incorrect statement$(s)$.
- ANatural selection is based on heritable variations and the production of a large number of offspring through reproduction.
- BDuring the establishment of natural selection,many organisms acquire values other than the mean character value.
- C$500$ million years ago,invertebrates were formed and were active.
- DReptiles lay thick-shelled eggs that do not dry up in the sun unlike those of amphibians.
Explore More
Similar Questions
$A$: $Lycaenops$ is a connecting link between reptiles and mammals.
$R$: In the $Permian$ period,there was an origin of mammal-like reptiles.
$R$: In the $Permian$ period,there was an origin of mammal-like reptiles.
Medium
View SolutionWhat type of evolution is shown in the figure?
Medium
View SolutionClosely related,morphologically similar sympatric populations,but reproductively isolated,are designated as
MediumAIPMT 1995
View SolutionMatch the columns:
Column-$I$ Column-$II$ $(1)$ Human embryos have gill $(a)$ Chemical evolution $(2)$ Oparin and Haldane $(b)$ Simulation experiment $(3)$ Miller and Urey $(c)$ Wings of bird and butterfly $(4)$ Analogous organ $(d)$ Ontogeny repeats phylogeny
| Column-$I$ | Column-$II$ |
|---|---|
| $(1)$ Human embryos have gill | $(a)$ Chemical evolution |
| $(2)$ Oparin and Haldane | $(b)$ Simulation experiment |
| $(3)$ Miller and Urey | $(c)$ Wings of bird and butterfly |
| $(4)$ Analogous organ | $(d)$ Ontogeny repeats phylogeny |
Easy
View SolutionSelect the correct option for the wings of a butterfly and the wings of a bird.
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