Biology
Grade-8
Easy
Question
Identify the type of selection in the given image.
- Natural selection
- Artificial selection
- Random selection
- Genetic manipulation
Hint:
The given image is showing the variety of animals evolving from the same ancestors.
The correct answer is: Natural selection
The image shows the evolution of different breeds of dogs that are evolved from wolf.
- The given image represents that different animals evolved from the same ancestors, and become different in appearance due to migrating to different geographical areas like India, China, America, and Europe.
- In the second generation, these animals are more varied.
- These variations are caused by random mating in these animals.
- These variations help these animals to adapt according to the environment.
- So, natural selection can be noticed here as a result of random mating.
Related Questions to study
Biology
Artificial selection is also known as________.
- Artificial selection is a process in which humans identify some desirable traits in organisms and through selective breeding, these traits are accumulated in the next generations of organisms.
- Natural selection is caused by random mating while artificial selection is caused by selective breeding.
- Human started the domestication of organisms that are beneficial to them many years ago. Some traits are useful for humans while some are not.
- So, the process of artificial selection allows human to grow plants with desirable traits and to keep the domestic animals with desired traits.
Artificial selection is also known as________.
BiologyGrade-8
- Artificial selection is a process in which humans identify some desirable traits in organisms and through selective breeding, these traits are accumulated in the next generations of organisms.
- Natural selection is caused by random mating while artificial selection is caused by selective breeding.
- Human started the domestication of organisms that are beneficial to them many years ago. Some traits are useful for humans while some are not.
- So, the process of artificial selection allows human to grow plants with desirable traits and to keep the domestic animals with desired traits.
Biology
In artificial selection ‘Selective Breeding’ is a necessary process due to earth’s population. Why is artificial selection important for humanity? Artificial selection has been a key factor in the evolution of:
In artificial selection ‘Selective Breeding’ is a necessary process due to earth’s population. Why is artificial selection important for humanity? Artificial selection has been a key factor in the evolution of:
BiologyGrade-8
Biology
Artificial selection has been a key factor in the evolution of:
Artificial selection has been a key factor in the evolution of:
BiologyGrade-8
Biology
What is an example of artificial selection?
What is an example of artificial selection?
BiologyGrade-8
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Mutations do not cause variation.
Mutations do not cause variation.
BiologyGrade-8
Biology
At the metaphase plate, what is the maximum number of alignments?
At the metaphase plate, what is the maximum number of alignments?
BiologyGrade-8
Biology
How many chromosome combinations are present in any gamete?
How many chromosome combinations are present in any gamete?
BiologyGrade-8
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A change in a gene or chromosome is called _______________.
A change in a gene or chromosome is called _______________.
BiologyGrade-8
Biology
____________________ is a process by which pieces of DNA break and recombine to produce new combinations of allele.
____________________ is a process by which pieces of DNA break and recombine to produce new combinations of allele.
BiologyGrade-8
Biology
Crossing over takes place between
Crossing over takes place between
BiologyGrade-8
Biology
Millions of sperm are trying to fertilize an egg at a time. This process is called
Millions of sperm are trying to fertilize an egg at a time. This process is called
BiologyGrade-8
Biology
What is the structural and functional unit of heredity?
What is the structural and functional unit of heredity?
BiologyGrade-8
Biology
Which of the following does NOT create a variation?
Which of the following does NOT create a variation?
BiologyGrade-8
Biology
Which of the following events happen in Prophase I?
Which of the following events happen in Prophase I?
BiologyGrade-8
