Select 2 that apply.

Several kinds of animals can produce a terrible _____ to drive away predators.
sight
scent
sting
color
odor

scent and odor.

Some fish and animals have _____ coverings, such as the porcupine's quills.

rough
light
spiny
soft
smooth

spiny.

To determine which of the options apply, we can analyze the statement given: "Several kinds of animals can produce a terrible _____ to drive away predators."

From the options provided, we need to select two that could describe the defense mechanism used by animals to drive away predators.

1. Sight: While some animals may have colors or patterns that serve as a warning to predators, the statement implies the animals produce something that is "terrible" to drive away predators rather than relying solely on their appearances. Therefore, sight may not be the correct choice in this case.

2. Scent: Some animals release strong or pungent scents to repel or deter predators. This could potentially be a correct choice since the statement implies the production of a terrible "something" to drive away predators.

3. Sting: Certain animals possess stingers, such as bees or scorpions, that they use as a defense mechanism by injecting venom into predators. This could also be a correct choice as the statement refers to a terrible defense mechanism.

4. Color: While some animals use bright or distinct colors as a warning signal to predators, the statement suggests that the animals produce something "terrible" rather than relying solely on their colors. Therefore, color may not be the correct choice.

5. Odor: A number of animals produce strong or foul-smelling odors as a defense mechanism to repel predators. This could potentially be a correct choice as the animals release something terrible, referring to an unpleasant odor.

Based on the explanation provided, the two options that apply are: scent and odor.