Three tagmata of of an insect body.
What is the head, thorax, and abdomen?
Four major characteristics of echinoderms.
What is pentaradial symmetry, ossicles, a water-vascular system, and tube feet?
The date most biologists believe vertebrates originated.
What is about 560 million years ago?
The three orders of amphibians today.
What is Anura, Caudata, and Gymnophiona?
The way that female mammals produce milk.
What are mammary glands?
The study of insects and other terrestrial arthropods.
What is entomology?
The meaning of the name "crinoid."
What is lily-like?
The body of a freshwater fish to gain water and lose ions.
What is hypertonic?
The transformation from an aquatic larval stage to a terrestrial adult.
What is metamorphosis?
Both the first mammals and the first dinosaurs appeared during this period.
What is the Triassic period?
Insect mouthparts that that function like upper and lower lips.
What is the labrum and labium?
The class that consists of about 900 species of sea urchins and sand dollars.
What is class Echinoidea?
The ability to detect chemicals in the environment.
What is chemoreception?
The type of skin modern amphibians have.
What is moist, thick skin with no scales?
The pointed teeth that grip, puncture, and tear.
What are canines?
Excretory organs that collect water and cellular wastes from the hemolymph.
What are the Malpigjian tubules?
The three subphyla of the phylum Chordata.
What is Vertebrata, Cephalochordata, and Urochordata?
The amount of teeth a shark has in a lifetime.
What is about 20,000?
Supplies the lubricant that keeps the skin most in air.
What are mucous glands?
A large sac that branches from the small intestine and acts as a fermentation chamber.
What is the cecum?
Developmental change where insects reach sexual maturity.
What is metamorphosis?
The name Urochordata are commonly called due to the tunic covering their body.
What is tunicates?
Three key features of bony fish.
What is bone, lungs or swim bladder, and scales?
Carries deoxygenated blood from the heart to the lungs and back to the heart.
What is pulmonary circulation?
The process by which bats emit a high-frequency sound wave, which bounce of objects or potential prey.
What is echolocation?