Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What type of skeleton do invertebrates have?
What type of skeleton do invertebrates have?
- Both A and B (correct)
- Hydrostatic skeleton
- Vertebral column
- Hard exoskeleton
What do invertebrates consume for energy?
What do invertebrates consume for energy?
Other organisms
Invertebrates generally have differentiated tissues except for ______.
Invertebrates generally have differentiated tissues except for ______.
Porifera
Invertebrates possess a vertebral column.
Invertebrates possess a vertebral column.
Signup and view all the answers
How many openings does an invertebrate's digestive chamber typically have?
How many openings does an invertebrate's digestive chamber typically have?
Signup and view all the answers
Where is the pneumostome located in gastropods?
Where is the pneumostome located in gastropods?
Signup and view all the answers
What is the name of the breathing hole in gastropods?
What is the name of the breathing hole in gastropods?
Signup and view all the answers
All gastropods are symmetrical.
All gastropods are symmetrical.
Signup and view all the answers
Glaucus atlanticus exhibits internal symmetry.
Glaucus atlanticus exhibits internal symmetry.
Signup and view all the answers
Flashcards are hidden until you start studying
Study Notes
Invertebrates Overview
- Invertebrates possess either a hydrostatic skeleton (e.g., worms, jellyfish) or a hard exoskeleton (e.g., insects, crustaceans).
Characteristic Features
- Lack a vertebral column, distinguishing them from vertebrates.
- Classified as heterotrophs, relying on the consumption of other organisms for nourishment.
- Generally composed of specialized tissues, with the exception of Porifera (sponges) which lack tissue differentiation.
- Have a digestive chamber that may have one or two openings to the exterior, facilitating digestion and waste expulsion.
Morphological Features
- Gastropods, a class of mollusks, exhibit asymmetry, particularly evident in those with a helical shell.
- Although gastropods may initially appear externally symmetrical, they feature a pneumostome, a breathing hole located consistently on the right side.
- Example organism: Glaucus atlanticus, which shows external symmetry but develops asymmetrical cerates during growth.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
