Different species of carnivorous animals that share the same habitat in an ecosystem may OPTIONS:
- become decomposers
- compete for food
- produce their own food
- mate with each other
A: compete for food

An apple appears red when struck by white light. This appearance is because the red light is reflected and the other colors are absorbed. What color will this apple appear to be when struck by blue light? OPTIONS:
- black
- blue
- red
- white
A: black

A research team wanted to produce a smaller variety of German shepherd dogs. They mated the smallest dogs from different litters for several generations. This is an example of which concept? OPTIONS:
- extinction
- mutation
- selective breeding
- natural selection
A: selective breeding

In New York State, an observer will usually see the Sun rise in the OPTIONS:
- north
- south
- east
- west
A:
east