Animal 1 answers even
2) cell wall
4) by ingesting it.
6) 3, 4, 1, 2
8) sexual reproduction
10) presence of Hox genes
12) 2, 4, 3, 1, 5
14)
mineralized hard parts
16) gene duplication
18) 2, 4, 1, 3
20) 5, 3, 2, 1, 4
22) body symmetry
24) have radial
symmetry.
26) a
sessile existence.
28) sponge.
30)
Porifera-coelomates, mouth from blastopore
32)
motility and active predation and escape.
34) true tissues.
36) have a body
cavity completely lined by mesodermal tissue, whereas
pseudocoelomates do not.
38) Muscular activity of
its digestive system distorts the body wall.
40) gastrula.
42) spiral
and determinate cleavage, blastopore becomes mouth, schizocoelous development
44) indeterminate
cleavage.
46) sea
star.
48) true tissues or no
tissues.
50) Some, but not all, grades reflect
evolutionary relatedness.
52) nucleotide sequences of homologous
genes
54) monophyletic.
56) metazoans.
58) annelids echinoderms
60) The fossil evidence
will be understood to have been incorrect because it is incomplete.