Podcast
Questions and Answers
What does a switch do in an electric circuit?
What does a switch do in an electric circuit?
- It provides flow of charges
- It stops the flow of electric current
- It makes a conducting link between the cell and the bulb (correct)
- It controls the heating effect of electric current
How is electric current expressed?
How is electric current expressed?
- By the speed of the charges flowing
- By the voltage of the circuit
- By the resistance of the conductor
- By the amount of charge flowing through a particular area in unit time (correct)
What happens if an electric circuit is broken?
What happens if an electric circuit is broken?
- The current changes direction
- The current increases
- The current decreases
- The current stops flowing (correct)
What constitutes electricity moving through a conductor?
What constitutes electricity moving through a conductor?
What is a continuous and closed path of an electric current called?
What is a continuous and closed path of an electric current called?
What is the process by which organisms create genetically similar or identical copies of themselves without the contribution of genetic material from another organism?
What is the process by which organisms create genetically similar or identical copies of themselves without the contribution of genetic material from another organism?
Which type of reproduction involves the sexual interaction of two specialized reproductive cells to create a fertilized zygote?
Which type of reproduction involves the sexual interaction of two specialized reproductive cells to create a fertilized zygote?
What is the main puzzle for biologists in the evolution of sexual reproduction?
What is the main puzzle for biologists in the evolution of sexual reproduction?
In asexual reproduction, what does an organism create?
In asexual reproduction, what does an organism create?
What is the significant feature of sexual reproduction compared to asexual reproduction?
What is the significant feature of sexual reproduction compared to asexual reproduction?
Which form of reproduction involves the creation of genetically similar or identical copies of an organism without the involvement of another organism?
Which form of reproduction involves the creation of genetically similar or identical copies of an organism without the involvement of another organism?
What is the significant cost associated with sexual reproduction?
What is the significant cost associated with sexual reproduction?
What is the main puzzle for biologists in the evolution of sexual reproduction?
What is the main puzzle for biologists in the evolution of sexual reproduction?
In sexual reproduction, what are the specialized reproductive cells called?
In sexual reproduction, what are the specialized reproductive cells called?
What process involves typically a male fertilizing a female of the same species to create a fertilized zygote?
What process involves typically a male fertilizing a female of the same species to create a fertilized zygote?
