In Australia, marsupials and placental mammals have evolved to share many similar characteristics. This type of evolution may be referred to as:
1. | Adaptive Radiation | 2. | Divergent Evolution |
3. | Cyclical Evolution | 4. | Convergent Evolution |
A population of a species invades a new area. Which of the following condition will lead to adaptive radiation?
1. | Area with a large number of habitats having very low food supply |
2. | Area with a single type of vacant habitat |
3. | Area with many types of vacant habitats |
4. | Area with many habitats occupied by a large number of species |
1. analogous organs
2. homologous organs
3. vestigial organs
4. retrogressive evolution
1. | Thorn of Bougainvillea and tendrils of Cucurbita – Analogous organs |
2. | Nictitating membrane and blind spot in the human eye – vestigial organs |
3. | Nephridia of the earthworm and Malpighian tubules of cockroach - Excretory organs |
4. | Wings of a honey bee and wings of crow - Homologous organs |
Adaptive radiation refers to:
1. | adaptations due to geographical isolation |
2. | evolution of different species from a common ancestor |
3. | migration of members of a species to different geographical areas |
4. | power of adaptation in an individual to a variety of environments |