Question : According to Darwin's Theory of Evolution, long necks in giraffes:
Option 1: arose because of constant attempts to reach leaves on tall trees, generation after generation
Option 2: do not give them any special advantage, and is just an accident
Option 3: give them an advantage in finding food, because of which those with long necks survive
Option 4: is a result of the special weather prevalent in African Savannah
Correct Answer: arose because of constant attempts to reach leaves on tall trees, generation after generation
Solution : The correct option is arose because of the constant attempt to reach leaves on tall trees, generation after generation.
According to Charles Darwin's Theory of Evolution, the long neck of a giraffe has evolved over a long period through a process of natural selection. It is believed that ancestral giraffes had shorter necks, and over generations, individuals with slightly longer necks may have had an advantage in reaching higher branches for food. This would have provided them with a greater chance of survival compared to their shorter-necked counterparts.
Application | Eligibility | Selection Process | Result | Cutoff | Admit Card | Preparation Tips
Question : In a big garden, 60% of the trees are coconut trees, 25% of the coconut trees are mango trees and 20% of the mango trees are apple trees. If the number of apple trees is 1500, the number of trees in the garden is:
Option 1: 48000
Option 2: 50000
Option 3: 51000
Option 4: 45000
Question : The process of evolution of different species in a given geographical area starting from a point and literally radiating to other areas of geography (habitats) is called ______.
Option 1: adjustive radiation
Option 2: adjustive evolution
Option 3: adaptive evolution
Option 4: adaptive radiation
Question : What is the name of the grasslands of Southern Africa?
Option 1: Savannah
Option 2: Pampas
Option 3: Velds
Option 4: Prairies
Question : Which among the following festivals is celebrated in Jharkhand during the spring when the saal trees wear new leaves?
Option 1: Karam
Option 2: Sarhul
Option 3: Jawa
Option 4: Sohrai
Question : Which among the following types of trees are also called sun-loving trees?
Option 1: Xerophytes
Option 2: Heliophytes
Option 3: Saprophytes
Option 4: Halophytes
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile