Advertisements
Advertisements
Question
Select the group which shares the maximum number of common characters.
Options
two individuals of a species
two species of a genus
two genera of a family
two genera of two families
Solution
two individuals of a species
APPEARS IN
RELATED QUESTIONS
What do you understand by the term variation?
Give two examples of plant species and two of animals.
Define 'speciation'. Explain how speciation occurs.
The theory of evolution of species by natural selection was given by ______
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
Read the following statement and justify same in your own words with the help of suitable example.
Geographical and reproductive isolation of organisms gradually leads to speciation.
State and define three factors responsible for the rise of a new species.
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.
Cichlid fishes in Lake Victoria are representatives of ______ type of 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 | ______ |
