Write the characteristics of Ramapithecus, Dryopithecus and Neanderthal man.
Characteristics of Ramapithecus : - * It evolved around 15 mya.
* More man-like, walked more erect, teeth like modern man. Characteristics of Dryopithecus : -
* It evolved around 25 mya. * Ape like, hairy arms and legs of same length, large brain, ate soft fruits and leaves, walked like gorillas and chimpanzees. Characteristics of Neanderthal Man : -
* It evolved around 1,00,000-40,000 year ago.
* Fossil found in east and central Asia, brain size 1400 cc used hides to protect body, buried their dead.
Write the names of the following :
(a) A 15 mya primate that was ape-like
(b) A 2 mya primate that lives in East African grasslands
With the help of an algebraic equation, how did Hardy-Weinberg explain that in a given population the frequency of occurrence of alleles of a gene is supposed to remain the same through generations?
Select and write analogous structures from the list given below:
(i) Wings of butterfly and birds
(ii) Vertebrate hearts
(ii) Tendrils of bougainvillaea and Cucurbita
(iv) Tubers of sweet potato and potato
Convergent Evolution' is shown by
homologous organs
analogous organs
vestigial organs
all of the above
Which of the following statements is correct
Lion and leopard show convergent evolution.
Cryptic camouflage is seen in Biston betularia
Natural selection is responsible for extinction of dinosaurs.
Homo habilis and Homo erectus are closely related.
Analogous structures are a result of
convergent evolution
shared ancestry
stabilising selection
stabilising selection