Biology
General
Easy
Question
Origin of different types of beaks occur due to
- Natural selection
- Interspecific competition
- Genetic drift
- Interspecific variation
The correct answer is: Natural selection
The possibility of the new characters is always present in the organisms. But, it is the condition of nature, which gives the chance of that character to come forward. Therefore any new character is favoured because of natural selection
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Select the incorrect statements
I. Natural selection is essential for evolution
II. Natural selection do not include variations
III. Concept of natural selection was given by Hugo de Vries
IV. Mutation is the sudden inheritable change
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The correct combination is a
Select the incorrect statements
I. Natural selection is essential for evolution
II. Natural selection do not include variations
III. Concept of natural selection was given by Hugo de Vries
IV. Mutation is the sudden inheritable change
V. Synthetic theory is also called Neo-Darwinism theory of evolution
The correct combination is a
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present in the primary atmosphere during its conversion to the secondary atmosphere?
What happened to present in the primary atmosphere during its conversion to the secondary atmosphere?
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General
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There are (n + 1) white and (n + 1) black balls each set numbered 1 to (n + 1). The number of ways in which the balls can be arranged in row so that the adjacent balls are of different colours is-
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