

Unit 1 - Taxonomy, Porifera, & Cnidaria
Flashcard
•
Science
•
11th Grade - University
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Taxonomy?
Back
Taxonomy is the science of classification of living organisms into groups based on shared characteristics.
2.
FLASHCARD QUESTION
Front
What are the main characteristics of Porifera?
Back
Porifera, or sponges, are characterized by their porous bodies, lack of true tissues, and the ability to filter feed.
3.
FLASHCARD QUESTION
Front
What is the defining feature of Cnidaria?
Back
Cnidaria are defined by the presence of cnidocytes, specialized cells that contain stinging structures called nematocysts.
4.
FLASHCARD QUESTION
Front
What are the two main body forms of Cnidarians?
Back
The two main body forms of Cnidarians are the polyp (sessile) and the medusa (free-swimming).
5.
FLASHCARD QUESTION
Front
Describe the polyp body form of Cnidarians.
Back
The polyp body form is sessile, with the mouth and tentacles oriented upward.
6.
FLASHCARD QUESTION
Front
What is the outermost layer of Porifera called?
Back
The outermost layer of Porifera is called the epidermis.
7.
FLASHCARD QUESTION
Front
What is the jelly-like layer found in the body walls of a sponge?
Back
The jelly-like layer found in the body walls of a sponge is called mesohyl.
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