#Question id: 4984
#SCPH28 | Zoology
A hypothetical mutation in a squirrel population produces organisms with eight legs rather than four. Further, these mutant squirrels survive, successfully invade new habitats, and eventually give rise to a new species. The initial event, giving rise to extra legs, would be a good example of
#Question id: 4985
#SCPH28 | Zoology
The loss of ventral spines by modern freshwater sticklebacks is due to natural selection operating on the phenotypic affects of Pitx1 gene
#Question id: 5012
#SCPH06 I Botany
A | Silurian | I | Seed plants appear |
B | Devonian | II | Gymnosperms dominant |
C | Carboniferous | III | Invasion of land by primitive land plants |
D | Jurassic | IV | first reptiles |
#Question id: 5012
#SCPH28 | Zoology
A | Silurian | I | Seed plants appear |
B | Devonian | II | Gymnosperms dominant |
C | Carboniferous | III | Invasion of land by primitive land plants |
D | Jurassic | IV | first reptiles |
#Question id: 5013
#SCPH06 I Botany
Following is correct match
|
Periods |
Age of evolutionary event |
|
A- Jurassic |
I- Fish |
|
B- Ordovician |
II- Amphibian |
|
C- Devonian |
III- Gymnosperm |
|
D-Carbonyferous |
IV- Invertebrates |
#Question id: 5013
#SCPH28 | Zoology
Following is correct match
|
Periods |
Age of evolutionary event |
|
A- Jurassic |
I- Fish |
|
B- Ordovician |
II- Amphibian |
|
C- Devonian |
III- Gymnosperm |
|
D-Carbonyferous |
IV- Invertebrates |