- How does the scorpions’ method of producing young differ from most other arachnids?
Further Reading / Supplemental Links
- http://cybersleuth-kids.com/sleuth/Science/Animals/Arthropods/index.htm
- http://www.oceanicresearch.org/education/wonders/arthropods.htm
- http://www.biokids.umich.edu/critters/Crustacea
- http://www.nps.gov/archive/yell/kidstuff/Alphabet/a.htm
Vocabulary
acarina The group of arachnids containing the mites and ticks.
araneae The arachnid group containing the spiders.
arthropoda The phylum meaning “jointed feet;” includes four living subphyla of arthro-
pods.
book lungs Gills modified for breathing air.
carapace The thick dorsal shield seen in many crustaceans; often forms a protective cham-
ber for the gills.
cephalothorax The anterior part of the arachnid body, derived from the fusion of the
head and thorax.
chelicerae The first pair of arachnid appendages; used in feeding and defense.
chelicerata An arthropod subphylum containing the arachnids.
ganglia A compact group of nerve cells having a specific function.
gastric mill A gizzard-like structure for grinding food.
haemolymph A blood-like fluid, which is propelled by a series of hearts into the body
cavity, where it comes in direct contact with the tissues.
molting The process by which arthropods shed their hard exoskeleton in order to grow.