phylogeny tree vocal

Question 1

the lack of symmetry

Answer 1

Asymmetry

Question 2

The organism can be split across a plane into 2 equal halves

Answer 2

bilateral

Question 3

_____pentaradial_______

Answer 3

– there are 5 planes across that the organism can be split into equal halves

Question 4

_____radial_______

Answer 4

there is an infinite number of planes that that the organism can be split into equal halves

Question 5

____protostome_____development__

Answer 5

– embryonic development when blastopore becomes mouth

Question 6

__deuterostome_____ development

Answer 6

embryonic development when blastopore becomes anus

Question 7

hydrostatic_______ skeleton

Answer 7

– fluid-filled compartment used for support

Question 8

___endoskeleton________

Answer 8

skeletal support is internal

Question 9

_____exoskeleton______

Answer 9

– skeletal support is external

Question 10

___coelomate_______

Answer 10

body cavity surrounded by mesoderm

Question 11

___pseudocoelomate_______

Answer 11

“fake” body cavity between the mesoderm and the gut

Question 12

___acoelomate_______

Answer 12

– lack of a body cavity, but still has 3 germ layers

Question 13

Ecdysis

Answer 13

molting, or the process of removing exterior cuticular
layer_

Question 14

Segmentation

Answer 14

– the division of an organism, or portions thereof, into repeated segments

Question 15

___diploblast________

Answer 15

2 germ layers (endoderm and ectoderm, but lack a mesoderm)

Question 16

____trophoblast_______

Answer 16

• 3 germ layers (endoderm, mesoderm, ectoderm)

Question 17

Trochophore

Answer 17

– a specialized larvae known for their spherical shape and ciliated ring

Question 18

Cellularity

Answer 18

unicellular or multicellular