28-35 UPDATED ACTUAL Exam
Questions and CORRECT Answers
What difference during embryonic development distinguishes echinoderms from other
invertebrates like annelids or arthropods? - CORRECT ANSWER - The blastopore forms
from the anus, not the mouth
Sort each of the specimens into their correct phylum.
C. capillata, the lion's mane jellyfish -
S. polymorpha, a large centipede
M. australis, the giant Gippsland earthworm
H. maculosa, the blue-ringed octopus
C. elegans, a tiny roundworm - CORRECT ANSWER - cnidaria
arthropoda
annelida
mollusca
nematoda
a Various folk remedies have been suggested to alleviate jellyfish stings, such as applying
vinegar to prevent further envenomation into the skin. Vinegar has been shown to help with some
species, but makes things worse for other species.
To clarify this in the lab, you could measure firing of NEMATOCYSTS in response to changes in
PH , using different species of CNIDARIANS . - CORRECT ANSWER -
Members of what group of invertebrates would be most likely to thrive in a desert environment?
- CORRECT ANSWER - Arthropoda
Which of the following are key features of Chordata? - CORRECT ANSWER - pharyngeal
slits, dorsal hollow nerve cord, Post-anal tail, a notochord