Table 191 Table 203 Construct an evolutionary history using

Construct an evolutionary history using the information in Table 19.1 in Chapter 19 and Table 20.3 Use names. Include only the 4 traits listed in these tables. You will need to lumpsome organisms of the groups of and some traits. The is a colonial ancestral protist derived is trait distinguishing from the animals, the the new) t at the end of the branches coming off the main slanted line. Recall that the progression of evolution (and time) is from bottom to top (outgroup) (Parazoa) groups here) (5 groups here) (2 animals multicellularity

Solution

Embryonic

Development.

Radial (Adults)

Bilatetal (Larvae)

Phylum	Organization	Symmetry	Germ layers	Embryonic Development.
Porifera	Cell	Assymetrical	2	N/A
Cnidaria	Tissue	Radial	2	N/A
Platyhelminths	Organ	Bilateral	3	Protostomes
Nematoda	Organ	Bilateral	3	protostome
Mollusca	Organ	Bilateral (some are assymetrical)	3	protostomes
Annelida	Organ	Bilateral	3	Protostomes
Arthropoda	Organ	Bilateral	3	Protostomes
Echinodermata	Organ	Radial (Adults) Bilatetal (Larvae)	3	Deuterostomes
Chordata	Organ	Bilateral	3	Deuterostomes