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WorksheetsInvertebrates Vocabulary
Total questions: 16
Worksheet time: 9mins
type of digestion in which food is broken down outside the cells in a digestive system and then absorbed
(a)
lack of symmetry
(a)
fertilization of an egg by sperm that occurs inside the body of a female
(a)
Body plan in which only a single, imaginary line can divide the body into two equal halves.
(a)
exoskeleton
A body covering, typically made of chitin, that provides support and protection, to which muscles attach
concentration of sense organs and nerve cells at the front of an animal's body (having something resembling a "head")
An animal that possesses a true coelom (a body cavity lined by tissue completely derived from mesoderm).
internal skeleton that supports the organisms and to which muscles attach
Coelomate
A body covering, typically made of chitin, that provides support and protection, to which muscles attach
concentration of sense organs and nerve cells at the front of an animal's body (having something resembling a "head")
An animal that possesses a true coelom (a body cavity lined by tissue completely derived from mesoderm).
internal skeleton that supports the organisms and to which muscles attach
Cephalization
A body covering, typically made of chitin, that provides support and protection, to which muscles attach
concentration of sense organs and nerve cells at the front of an animal's body (having something resembling a "head")
An animal that possesses a true coelom (a body cavity lined by tissue completely derived from mesoderm).
internal skeleton that supports the organisms and to which muscles attach
Endoskeleton
A body covering, typically made of chitin, that provides support and protection, to which muscles attach
concentration of sense organs and nerve cells at the front of an animal's body (having something resembling a "head")
An animal that possesses a true coelom (a body cavity lined by tissue completely derived from mesoderm).
internal skeleton that supports the organisms and to which muscles attach
blood is circulated through vessels to different organs in the body - cells never come into direct contact with blood
Cephalization
Closed circulation
Extracellular digestion
Open circulation
An animal whose body cavity is not completely lined by mesoderm
Radial symmetry
Pseudocoelomate
Bilateral symmetry
Coelomate
Blood does not circulate through vessels but washes through the system
Cephalization
Closed circulation
Open circulation
Endoskeleton
A fluid-filled internal cavity that provides structure and support surrounded by muscle tissue
hydrostatic skeleton
intracellular digestion
acoelomate
internal fertilization
The process by which the female lays eggs and the male fertilizes them once they are outside the female is internal fertilization.
true
false
The process in which food is digested inside individual cells is extracellular digestion.
true
false
A solid bodied animal lacking a cavity between the gut and outer body wall is an acoelomate.
true
false
A body plan in which body parts repeat around the center of the body is radial symmetry.
true
false
