Evolution

According to Darwin, The organic evolution is due to

According to Darwin, The organic evolution is due to Options (a) Interspecific competition (b) Competition within closely related species (c)…

What is common between parrot, platypus and kangaroo?

What is common between parrot, platypus and kangaroo? Options (a) Toothless jaws (b) Functional post-end tail (c) Ovoparity (d) Homeothermy…

Thorn of Bougainvillea and tendril of cucurbita are example of

Thorn of Bougainvillea and tendril of cucurbita are example of Options (a) analogous organ (b) homologous organs (c) vestigial organs…

One of the important consequences of geographical isolation is

One of the important consequences of geographical isolation is Options (a) preventing speciation (b) speciation through reproductive isolation (c) random…

The finches of Galapagos islands provide an evidence in favour of

The finches of Galapagos islands provide an evidence in favour of Options (a) evolution due to mutation (b) retrogressive evolution…

Among the human ancestors the brain size was more that 1000 cc in

Among the human ancestors the brain size was more that 1000 cc in Options (a) Homo erectus (b) Ramapithecus (c)…

When two species of different genealogy come to resemble each other

When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed…

Dinosaurs dominated the world in which of the following geological era?

Dinosaurs dominated the world in which of the following geological era? Options (a) Devonion (b) Coenozoic (c) Jurassic (d) Mesozoic…

Which one of the following in birds, indicates their reptilian ancestry?

Which one of the following in birds, indicates their reptilian ancestry? Options (a) Scales on their hind limbs (b) Four-chambered…

Variation in gene frequencies within populations can occur by chance rather

Variation in gene frequencies within populations can occur by chance rather than by natural section. The is referred to as…