Alex looked at an electric toothbrush that had a plug with three metal prongs. Why are these prongs made out of metal? OPTIONS:
- Metal doesn't get hot and melt when you plug it into the outlet.
- Metal is strong and is less likely to break when you plug it into the outlet.
- Metal is an insulator and prevents shocks when you plug it into the outlet.
- Metal is a conductor and completes a circuit when you plug it into the outlet.
A: Metal is a conductor and completes a circuit when you plug it into the outlet.

The stages in the life cycle of an organism are shown below. birth -> growth -> development -> reproduction -> death In which life cycle stage will a new organism be made? OPTIONS:
- growth
- development
- reproduction
- death
A: reproduction

In the life cycle of a fly, which stage comes after the larval stage? OPTIONS:
- egg
- adult
- nymph
- pupa
A: pupa

Selective breeding has resulted in plants that are resistant to pests and produce a higher yield of fruits and vegetables. Which of these is the most likely disadvantage that can result from this process? OPTIONS:
- decreased genetic diversity
- habitat destruction
- overpopulation
- increased erosion
A:
decreased genetic diversity