Which of the following structures is homologous to the wing of a bird?
1. Dorsal fin of a shark
2. Wing of a moth
3. Hind limb of Rabbit
4. Flipper of whale
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Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?
1. Wings of honey bee and wings of crow - Homologous organs
2. Thorn of Bougainvillea and tendrils of Cucurbita - Analogous organs
3. Nictitating membrane and blind spot in human eye - Vestigial organs
4. Nephridia of earthworm and Malpighian tubules of cockroach - Excretory organs
Evolutionary history of an organism is known as
1. Phylogeny
2. Ancestry
3. Paleontology
4. Ontogeny
Persons with sickle cell trait are resistant to severe malaria. This shows:
1. heterozygote advantage
2. heterosis
3. punctuated equilibrium
4. reverse evolution
Evolution of life shows that life forms had a trend of moving from:
1. land to water
2. dryland to wet land
3. fresh water to sea water
4. water to land
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