Home
Class 12
BIOLOGY
An evolutionary pattern characterised by...

An evolutionary pattern characterised by a rapid increase in number and kinds of closely related species is called

A

Divergent evolution

B

Convergent evolution

C

Adaptive radiation

D

Parallel evolution.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the evolutionary pattern characterized by a rapid increase in the number and kinds of closely related species, follow these steps: ### Step-by-Step Solution: 1. **Understand the Question**: The question asks for a specific evolutionary pattern that involves a rapid increase in the number and types of closely related species. 2. **Review the Options**: The options provided are: - Divergent evolution - Convergent evolution - Adaptive radiation - Parallel evolution 3. **Define Each Term**: - **Divergent Evolution**: This is the process where two or more related species become more dissimilar over time, often due to different environments or selective pressures. - **Convergent Evolution**: This occurs when unrelated species evolve similar traits or adaptations due to similar environmental pressures, despite not sharing a recent common ancestor. - **Adaptive Radiation**: This is a process where a single ancestor species rapidly diversifies into a wide variety of forms to adapt to different environments. This results in a rapid increase in the number and kinds of closely related species. - **Parallel Evolution**: This refers to the process where two related species evolve similar traits independently, often in response to similar environmental challenges. 4. **Identify the Correct Answer**: Among the definitions, **adaptive radiation** specifically describes the rapid increase in the number and kinds of closely related species, especially after significant environmental changes or extinctions (e.g., the diversification of mammals after the extinction of dinosaurs). 5. **Conclusion**: The correct answer to the question is **adaptive radiation**. ### Final Answer: An evolutionary pattern characterized by a rapid increase in number and kinds of closely related species is called **adaptive radiation**. ---
Promotional Banner

Topper's Solved these Questions

  • EVIDENCES OF EVOLUTION

    DINESH PUBLICATION ENGLISH|Exercise CHECK YOUR GRASP|19 Videos

  • ENVIRONMENTAL ISSUES

    DINESH PUBLICATION ENGLISH|Exercise Model test paper-5|100 Videos

  • EXCRETORY PRODUCTS AND THEIR ELIMINATION

    DINESH PUBLICATION ENGLISH|Exercise Check your graps|10 Videos

Similar Questions

Explore conceptually related problems

The increased number and density of species in the region of ecotone is called

Abnormal increase in number of RBC in blood is called

Phenomenal and rapid increase of population in a short period is called

A is an age related disorder characterised by decrease in bone mass and increased chances of fracture, Decreased level of B a common cause of this disease. Select the option which correctly fill the blanks A and B respectively.

According to IUCN Red list , during the last two decades the maximum increase in the number of the threatened species is among :

A species can be distinguished from the other closely related species on the basis of

The species which are present in large numbers and have large size are called

[A] : Chromosome number and chromosome morphology are helpful in the elucidation of certain phylogenetic problems . [R] : The external characters of seeds are of great value in separating closely related genera and species .

Select incorrect statement w.r.t. Mac Arthur experiment on five closely related species of warblers.

[A] : Natural populations are capable of an enormous and rapid increase is numbers but for the most part remain relatively constant in size . [R] : Human interference has led to constancy in the size of the natural populations .