UCSC Slug Practice Test

Slugs rely on avoiding detection to stay safe. They blend into their surroundings, move mainly at night, and hide in moist microhabitats that provide cover and moisture. Cryptic coloration helps them merge with leaves, soil, and detritus, making predators less likely to notice them. Being active at night reduces encounters with daytime predators like birds, and sheltering in moist areas under leaf litter, logs, or damp soil keeps them hidden and less exposed to danger.

The other options don’t fit as well. Bright warning colors aren’t typical for most slugs, which favors camouflage over conspicuous signals. Slugs have a reduced or absent shell, so a hard shell isn’t a defense. And slugs aren’t fast runners, so speed isn’t a reliable defense either.