Animals (25, 26) Flashcards
What are the 7 characteristics of the animal phylum?
- levels of organization
- body symmetry
- germ layers
- body cavity
- embryological development
- segmentation
- cephalization
How many levels of organization do Porifera have?
1: specialized cells
How many levels of organization do Cnidaria have?
2: specialized cells and tissues
How many levels of organization do Platyhelminthes have?
3: specialized cells, tissues, and organs
How many levels of organization do Nematoda have?
3: specialized cells, tissues, and organs
How many levels of organization do Arthropoda have?
3: specialized cells, tissues, and organs
How many levels of organization do Annelida have?
3: specialized cells, tissues, and organs
How many levels of organization do Mollusks have?
3: specialized cells, tissues, and organs
How many levels of organization do Echinoderms have?
3: specialized cells, tissues, and organs
How many levels of organization do Chordates have?
3: specialized cells, tissues, and organs
What kind of body symmetry does Porifera have?
Porifera is absent of any body symmetry
What kind of body symmetry does Cnidaria have?
Radial Symmetry
What kind of body symmetry does Platyhelminthes have?
Biateral Symmetry
What kind of body symmetry does Nematoda have?
Bilateral Symmetry
What kind of body symmetry does Arthropoda have?
Bilateral Symmetry
What kind of body symmetry does Annelida have?
Bilateral Symmetry
What kind of body symmetry do Mollusks have?
Bilateral Symmetry
What kind of body symmetry does Echinodermata have?
Radial Symmetry (as adults)
What kind of body symmetry do Chordates have?
Bilateral Symmetry
How many germ layers do Porifera have?
No germ layers
How many germ layers do Cnidaria have?
Two
How many germ layers do Platyhelminthes have?
Three
How many germ layers do Nematoda have?
Three
How many germ layers do Arthropoda have?
Three
How many germ layers do Annelida have?
Three
How many germ layers do Mollusks have?
Three
How many germ layers do Echinoderms have?
Three
How many germ layers do Chordates have?
Three
What type of body cavity do Porifera have?
No body cavity
What type of body cavity do Cnidaria have?
Acoelum
What type of body cavity do Platyhelminthes have?
Acoelum
What type of body cavity do Nematoda have?
Pseudocoelum
What type of body cavity do Arthropoda have?
True Coelum
What type of body cavity do Annelida have?
True Coelum
What type of body cavity do Mollusks have?
True Coelum
What type of body cavity do Echinodermata have?
True Coelum