Identify the correct statement from the given options.

  • A
    Fitness is the end result of the ability to adapt and be selected by nature.
  • B
    All mammals except whales and camels have seven cervical vertebrae.
  • C
    Mutation is random and directional.
  • D
    Darwinian variations are small and directionless.

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.

Which of the following arrangements of periods of the Mesozoic era gives a correct sequence from the earliest to the latest?

Match the scientists with their respective contributions: Hugo de Vries,Hardy-Weinberg,and Ernst Haeckel.

Assertion $A$: Organisms show variations to adapt and utilize the environment to the maximum extent.
Reason $R$: Variations lead to the formation of new species.
Which option is correct for Assertion $A$ and Reason $R$?

The cause of aging in mammals,including humans,is:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo