Invertebrates 1 Flashcards
1
Q
Characteristics of Animals
A
Multicellular
Lack cell walls
Heterotrophs
Sexual Reproduction
Motility at some point in life cycle
Rapid response to external stimuli
Vast majority are invertebrate
2
Q
Symmetrical animals have
A
an upper (dorsal) and a lower (ventral) surface
3
Q
Animals with bilateral symmetry can be
A
can be divided into mirror image halves only along one plane down the midline
4
Q
Bilateral organisms develop in one of two ways during embryological development
A
The two ways are protostome and deuterostome development
5
Q
Protostomes include two distinct evolutionary lines known as the
A
Ecdysozoans and the Lophotrochozoans
6
Q
Lophotrochozoans
A
include mollusks, annelids, and flatworms
