Facts About
Pet Mollusks
& Snails as Pets
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Quiz about Pet Mollusks - Snails
By: Rocky & Bullwinkle (our pet invertebrates)
How much do you know about your pet snail and its relatives?
Here's a little fun quiz that might test your knowledge:
1. Snails belong to what scientific family?
A. Crusteacea
B. Mollusca
C. Insecta
D. Arachnida
2. A snail's slime is good for:
A. Protection
B. Lubrication
C. Glue
D. All of the Above
3. How big can a snail get?
A. Fifteen inches long and weigh up to two pounds.
B. Eight inches long and weigh up to one pound.
C. Five inches long and weigh up to half a pound.
D. Two inches long and weigh up to a quarter of a pound.
4. Scientist have documented that a snail can live up to how long?
A. 1 year
B. 5 years
C. 10 years
D. 15 years
5. How do snails sense their food?
A. Through sight
B. Through touch
C. Through smell
D. Through hearing
6. A Snail's gender is:
A. Hermaphrodites
B. Male
C. Female
D. Either male or female
7. How do snails travel?
A. They squish slime ahead of them and slide along it.
B. They move by pulsing waves in their one muscular "foot."
C. They hop along using their one big foot.
D. They wiggle back and forth along their slime.
8. Why do snails melt when salt is poured on them?
A. Salt is poison to snails.
B. Salt is acid to snails.
C. Because of the Osmotic Process.
D. All of the Above.
9. How fast can a snail travel?
A. 23 inches per hour.
B. 106 inches per hour.
C. 547 inches per hour.
D. 1,980 inches per hour.
10. Do Snails have teeth?
A. Yes
B. No
1. Answer: B. Mollusca. Snails are not insects as many
people think; they are actually Mollusks belonging to the
Phylum Mollusca along with octopus, squids, slugs, and
clams. So a snail might be a pest, but not a bug!
2. Answer: D. All of the Above. The thick viscous slime that
a snail produces is not only to help them get along the
ground. It is in fact so thick that they can crawl across
the edge of a razor blade and not be cut. They can use it to
climb up walls and cling to ceilings, and they can use it to
push themselves into tight spots like under rocks or under
logs to get away from the midday sun.
3. Answer: A. Fifteen inches long and weigh up to two
pounds! The biggest land snail, the Giant African Snail or
Ghana Tiger Snail, has been documented to reach fifteen
inches in length and weigh up to two pounds. And the
strawberry farmers in North America think they have a
problem!
4. Answer: D. 15 years. The longest lived snail that was
documented and recorded lived for fifteen years, but a
research study of Mud Snails in the eastern United States
indicated that some individuals might live as long as
seventy years!
5. Answer: C. Through smell. Snails have very basic eyesight
and can only detect light and dark. They do have a sense of
touch that helps them navigate. They have no hearing
whatsoever. Their sense of smell and touch is keen however,
and they use those senses to detect their food and their
surroundings.
6. Answer: A. Hermaphrodites. Snails have both male and
female sex organs. When they mate both snails come away
pregnant and lay their eggs in the soil under a log or rock.
7. Answer: B. They move by pulsing waves in their one
muscular "foot." The waves move from back to front and push
the snail forward by pushing backward against the ground,
sliding along on its slime trail. But there is one snail
that "walks" by pushing back with one side of its foot and
then the other side similar to the way many other animals
walk.
8. Answer: C. Because of the Osmotic Process, snails melt
when you pour salt on them or they encounter anything with a
hint of salt in it. This happens because of the snail's
cells reacting to the salt in an osmotic process, meaning
that water rapidly leaves the cells of the snail to balance
the salt on the snail's body. Since snails have little
structure to their body, without enough water they can
become "a pile of goo."
9. Answer: D. 1,980 inches per hour. The fastest snail in
this very slow family of mollusks is the speckled garden
snail which can travel up to 55 yards per hour (1980 inches
per hour). The typical garden snail travels 23 inches per
hour.
10. Answer: A. Yes. Snails have sets of jaws inside their
mouths, and radula (muscles similar to the human tongue)
with many rows (up to thousands) of tiny teeth. The radula
move back and forth rapidly to grind up the snail's food.
The teeth wear away quickly because plants are hard to chew,
but new teeth grow back constantly, just like our
fingernails.
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