Biology
Grade-9
Easy
Question
Variations arise due to:
- Mutations
- Sexual reproduction
- Environmental mutagens
- All of the above
Hint:
Variations arise due to all of the above conditions.
The correct answer is: All of the above
- A variation is an inherited trait or character that makes an individual different from other members of the species.
- These traits are most helpful for survival in an environment become more common through the process of Natural selection.
- The variation can happen due to mutations, sexual reproduction or due to the presence of environmental mutagens.
Related Questions to study
Biology
A breed of dogs called huskies are evolved from wolves. This is an example of?
A breed of dogs called huskies are evolved from wolves. This is an example of?
BiologyGrade-9
Biology
______________ is a force that causes groups of organisms to change over time.
______________ is a force that causes groups of organisms to change over time.
BiologyGrade-9
Biology
Which mechanism is working in the following situation?
Which mechanism is working in the following situation?
BiologyGrade-9
Biology
Why does the number of blue caterpillars decrease over time?
Why does the number of blue caterpillars decrease over time?
BiologyGrade-9
Biology
Darwin went on a voyage on the HMS Beagle in?
Darwin went on a voyage on the HMS Beagle in?
BiologyGrade-9
Biology
Characteristics that are helpful in a particular habitat may be harmful to another.
Characteristics that are helpful in a particular habitat may be harmful to another.
BiologyGrade-9
Biology
An adaptation is a type of variation that is ___________ for the organism.
An adaptation is a type of variation that is ___________ for the organism.
BiologyGrade-9
Biology
What is changing over time considering the theory of evolution by natural selection?
What is changing over time considering the theory of evolution by natural selection?
BiologyGrade-9
Biology
_____________ is the mechanism whereby individuals with certain heritable traits have an increased chance of surviving and producing offspring.
_____________ is the mechanism whereby individuals with certain heritable traits have an increased chance of surviving and producing offspring.
BiologyGrade-9
Biology
The theory of evolution by natural selection was published by Darwin in which book?
The theory of evolution by natural selection was published by Darwin in which book?
BiologyGrade-9
Biology
Natural Selection is led by a change in the environment and the survival of the
Natural Selection is led by a change in the environment and the survival of the
BiologyGrade-9
Biology
The differences in skin color, the ability of digest dairy products, the ability to metabolize alcohol, and cholesterol levels are just a few examples of:
The differences in skin color, the ability of digest dairy products, the ability to metabolize alcohol, and cholesterol levels are just a few examples of:
BiologyGrade-9
Biology
The differences in the beaks of the Galapagos finches are called _____________.
The differences in the beaks of the Galapagos finches are called _____________.
BiologyGrade-9
Biology
Mutations are changes in the ____________ of an organism.
Mutations are changes in the ____________ of an organism.
BiologyGrade-9
Biology
Which of the following environmental factors affects the number of individuals in a population?
Which of the following environmental factors affects the number of individuals in a population?
BiologyGrade-9
