Ch 2 - Definitions (2.1 - 2.6) Flashcards
What word means the process of arranging animals or other things into groups according to their similarities?
classification
Animals with backbones are called…
vertebrates
Animals without backbones are called…
invertebrates
Invertebrates that have an external skeleton, jointed appendages, and segmented bodies are called…
anthropods
A strong, lightweight outer skeleton that provides an arthropod with protection, strength, and support is called an…
exoskeleton
What is chitin?
Chitin is a tough material that helps make up an arthropod’s external skeleton.
What are the tiny openings in an insect’s abdomen through which air enters the breathing tubes?
spiracles
What word means a change in form?
metamorphosis
What is a complete metamorphosis?
In a complete metamorphosis, an insect goes through the stages of egg, larva, pupa, and adult.
What is an incomplete metamorphosis?
In an incomplete metamorphosis, an inset goes through the stages of egg, nymph, and adult.
What is the process in which an insect sheds its exoskeleton during growth?
moulting
What do you call a scientist who studies insects?
an entomologist
What word describes an animal that is active at night?
nocturnal
What is the name given to the body region of a spider that is like a head and thorax combined?
cephalothorax
What are the sensitive hairs on a spider’s body that give the spider its sense of touch called?
setae
