Evolution

Assertion : The Cro-Magnon man was the direct ancestor of the living modern man. Reason : Cro-Magnon man had slightly prognathous face.

Assertion: Interspecific competition is the only potent force in organic evolution. Reason : Unexceptionally two closely related species competing for the same resources cannot co-exist indefinitely.

Assertion: Darwin's finches show a variety of beaks suited for eating large seeds, flying insects and cactus seeds. Reason : Ancestral seed-eating stock of Darwin's finches radiated out from South American mainland to…

Assertion : Analogous organs are a result of divergent evolution. Reason : Eye of octopus and of mammals depict divergent evolution.

Documented microfossils have been found that are as old as

Assertion : Hardy-Weinberg principle states that in the absence of disturbing influences, gene frequencies of large populations of sexually reproducing organisms do not change, provided that matings, occur at random.…

The correct sequence of stages in the evolution of modern man (Homo sapiens), is

Assertion: Darwin's finches are a classical example of natural selection. Reason : Darwin explained that the difference in size and shape of the beaks of the species was a result of the adaptation of the species to…

Which one of the following is reptilian ancestor of birds?

In Miller's experiment, he used a mixture of $\mathrm{CH}_{4^{\prime}} \mathrm{NH}_{3^{\prime}} \mathrm{H}_2$ and water vapour in a closed flask to mimic early earth conditions. What was the temperature at which this…

The extinct human ancestor, who ate only fruits and hunted with stone weapons was

Which of the following statements is correct ?