(a) Name the primates that lived about 15 million years ago. List their characteristic features.
(b) (i) Where was the first man-like animal found?
(ii) Write the order in which Neanderthals, Homo habilis and Homo erectusappeared on earth.
State the brain capacity of each one of them.
(iii) When did modern Homo sapiens appear on this planet?
(a) Dryopithecus (ape-like) and Ramapithecus (man-like) were the two primates that lived 15 million years ago. These primates were hairy and their walk was similar to that of chimpanzees.
(b) (i) The first man-like animal was found in Africa.
(ii)
|
Year |
Evolution |
Brain capacity |
|
2 million years ago |
Homo habilis (Australopithecines) lived in East Africa |
650- 800 cc |
|
1.5 million years ago |
Homo erectus |
900 cc |
|
1,000 - 40,000 years ago |
Neanderthal man |
1400 cc |
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.
B.
Cryptic camouflage is seen in Biston betularia
The peppered moth (Biston betularia) is a temperate species of night-flying moth. Peppered moth evolution is often used by educators as an example of natural selection. Peppered moths are cryptically camouflaged against their backgrounds when they rest on the tree trunk.
Convergent Evolution' is shown by
homologous organs
analogous organs
vestigial organs
all of the above
B.
analogous organs
Convergent evolution or adaptive convergence or parallel evolution is shown by analogous organs, whereas divergent evolution or evolutionary divergence or adaptive radiation are shown by homologous organs.
Switch
