Evolution Flashcards
Universe created ____ years ago
Wb Earth?
20 billion
4.5 bya
Gases in early atmosphere?
Water vapour, methane, carbon dioxide, ammonia
Life appeared _____ years ago
non cellular: 3 bya
cellular: 2bya
Oparin of ____________ and Haldane of _____________
What year did S.L Miller conduct his experiment? What were the gases involved and what temperature was it at?
1953
CH4, H2, NH3 and water vapour at 800C
The fitness, according to Darwin, refers ultimately and only to
reproductive fitness
Where did Alfred Wallace study
MAlay Archipelago
Who proposed embryological support for evolution? Who disapproved of it?
Ernst Heckel
Karl Ernst von Baer
The so-called fitness is
based on characteristics which are _________
inherited
The essence of Darwinian theory about
evolution is __________
natural selection
In founder effect, the _________ population
becomes founders
original drifted
Gene flow is expected to be lower in species that have _____________population sizes
small
Invertebrates were formed _______
500mya
Jawless fish and fish to land happened?
350 mya
Seaweeds and other plants
320 mya
What year was Coecolanth discovered in? Which country?
1938
South Africa
Animals called ________________ evolved into amphibians
lobefins
When did dinosaurs go extinct?
65 mya
Dryopethicus and Ramapethicus existed _______
15 mya
Few fossils of man-like bones have been discovered in _____________. These revealed hominid features leading to the belief that about ________, man-like primates walked in eastern Africa. They were probably not taller than __________ but walked upright.
Ethiopia and Tanzania
3-4 mya
4 feet
Australopithecines probably lived in _________ grasslands, ____ million years ago. What did they do?
East African
two
Evidence shows they hunted with stone weapons but essentially ate fruit.
first human-like being the hominid is called. Their brain capacity? They probably didn’t eat _____
Homo habilis
650-800cc
meat
Fossils discovered in _____ in _______ revealed the next stage, i.e., Homo erectus about ____ mya. Brain capacity is _______. They eat ______
Java, 1891
1.5
900cc
meat
The Neanderthal man with a brain size
of ________ lived in near __________ between ___________ years back.
1400cc
east and central Asia
1,00,000-40,000
They used hides to protect their body and buried their dead
