Advertisements
Advertisements
Question
Define Speciation.
Advertisements
Solution
The process of formation of a new species from the pre-existing species is called speciation.
APPEARS IN
RELATED QUESTIONS
List three main factors responsible for the speciation and briefly describe each one of them
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?
Name one reptile in given case where higher incubation temperature leads to the development of :male progeny.
State one advantage of variation to a species.
Name the famous book written by Charles Robert Darwin.
Fill in the following blank with suitable word:
Broccoli has evolved from .............. by the process of artificial selection.
The human species has genetic roots in ______
One of the following has not been produced from wild cabbage by the process of artificial selection. This one is :
(a) kohlrabi
(b) cabbage
(c) spinach
(d) kale
In the following Question, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
Assertion: Speciation is the reproductive isolation amongst once interbreeding population.
Reason: Genetic drift, Natural selection, and Severe DNA change can cause speciation.
Arrange the major events as per geological time scale:
(Origin of conifers, Abundance of trilobites, Diversification of fishes, All types of marine algae, Formation of Forests, Rise of dinosaurs, Extinction of seed ferns, Rise of modern insects.)
| Geological time period |
Major events | |
| 1. | Cambrian | ______ |
| 2. | Devonian | ______ |
| 3. | Permian | ______ |
| 4. | Triassic | ______ |
