click below
click below
Normal Size Small Size show me how
AS Arthropoda
Question | Answer |
---|---|
"Arthropoda" means | jointed foot |
Arthropods are considered to be the most successful group of animals because of... | sheer numbers (80% of all animals are arthropods) |
Arthropods can be divided into equal left and right halves indicating ___________________ symmetry. | bilateral |
Arthropod bodies can be divided into clearly identifiable sections. | segmentation |
Arthropods have _________________ made of chitin. | exoskeletons |
Arthropods shed their exoskeletons during __________________. | molting |
Many arthropods change their shape throughout their molting stages in a process called... | metamorphosis |
Type of digestive system found in arthropods. | complete digestive system |
Type of circulatory system found in arthropods. | open circulatory system |
hemocoel | cavities (open spaces) within an arthropod in which blood flows freely outside of blood vessels; bathing the organs. |
Subphylum Trilobitomorphia includes the _______________ considered to be the ______________ of arthropods. | trilobites; ancestors |
Subphylum Chelicerata includes ________________ and _____________. | arachnids (spiders, ticks, scorpions, mites); horseshoe crabs |
Subphylum Crustacea includes ____________________. | crustaceans (lobsters, crabs, shrimp, barnacles, crayfish) |
Subphylum Hexopoda includes ___________________. | insects (bees, ants, beetles, butterflies, grasshoppers) |
Subphylum Myriapoda includes __________________. | myriapods (centipedes and millipedes) |