|
|
According to this phylogenetic tree, annelids are most closely related to _____. (Activity 32A) 
|
| arthropods |
| mollusks |
| nematodes |
| cnidarians |
| platyhelminths |
|
|
|
According
to this phylogenetic tree, the clade that includes echinoderms and chordates
is most closely related to the clade that includes _____. (Activity 32A) 
|
| mollusks |
| poriferans |
| nematodes |
| cnidarians |
| nematodes |
|
|
|
According to this phylogenetic tree, cnidarians are most closely related to _____. (Activity 32A) 
|
| nematodes |
| annelids |
| mollusks |
| echinoderms |
| platyhelminths |
|
|
|
According to this phylogenetic tree, chordates are most closely related to _____. (Activity 32A) 
|
| arthropods |
| mollusks |
| poriferans |
| echinoderms |
| cnidarians |
|
|
|
Cnidarians are in the _____ clade. (Activity 32A)
|
| parazoan |
| protostome |
| radiata |
| coelomate |
| bilateria |
|
|
|
Platyhelminths are _____. (Activity 32A)
|
| pseudocoelomates |
| radially symmetrical |
| acoelomates |
| diploblastic |
| coelomates |
|
|
|
As a group, how do poriferans, cnidarians, and platyhelminths differ from other animal phyla? (Activity 32A)
|
| They are radially symmetrical. |
| They do not have a body cavity. |
| They are triploblastic. |
| They are diploblastic. |
| They lack true tissues. |
|
|
|
Echinoderms are _____. (Activity 32A)
|
| deuterostomes |
| parazoans |
| protostomes |
| radiata |
| acoelomates |
|
|
|
Mollusks are _____. (Activity 32A)
|
| protostomes |
| acoelomates |
| parazoans |
| deuterostomes |
| radiata |
|
|
|
Protostomes exhibit _____ cleavage; deuterostomes exhibit _____ cleavage. (Activity 32A)
|
| radial and spiral ... determinate and indeterminate |
| radial and indeterminate ... spiral and determinate |
| radial and determinate ... spiral and indeterminate |
| spiral and determinate ... radial and indeterminate |
| spiral and indeterminate ... radial and determinate |
|
|
|
Why are annelids, arthropods, and mollusks placed in the same clade? (Activity 32A)
|
| They are triploblastic. |
| They are protostomes. |
| They are bilaterally symmetrical. |
| They are coelomates. |
| They are deuterostomes. |
|
|
|
Roundworms are classified in the phylum _____. (Activity 32A)
|
| Platyhelminthes |
| Nematoda |
| Arthropoda |
| Porifera |
| Annelida |
|
|
|
In deuterostomes the blastopore develops into the _____. (Activity 32A)
|
| coelom |
| anus |
| brain |
| gastrula |
| mouth |
|
|
|
Grasshoppers are classified in the phylum _____. (Activity 32A)
|
| Annelida |
| Arthropoda |
| Cnidaria |
| Chordata |
| Nematoda |
|
|
|
At the phylum level, you are most closely related to a(n) _____. (Activity 32A)
|
| clam |
| sea star |
| earthworm |
| jelly |
| planarian |
