Bio 167 Exam 2 UPDATED ACTUAL
Exam Questions and CORRECT Answers
What difference during embryonic development distinguishes echinoderms from other
invertebrates like annelids or arthropods? - CORRECT ANSWER - 2) The blastopore
forms the anus, not the mouth.
During renovations, the natural history museum's specimens have gotten all mixed up. Sort each
of the specimens into their correct phylum.
C. capillata, the lion's mane jellyfish Select your answer
S. polymorpha, a large centipede Select your answer
M. australis, the giant Gippsland earthworm Select your answer
H. maculosa, the blue-ringed octopus Select your answer
C. elegans, a tiny roundworm - CORRECT ANSWER - 1- cnidaria
2- anthropoda
3- annelida
4- mollusca
5- nematode
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 Select your answerYou got it correct in
response to changes in Select your answerYou got it correct , using different species of Select
your answerYou got it correct - CORRECT ANSWER - 1 - nematocysts
2- pH
3- cnidarians
Categorize each of the six cnidarians as a medusa or a polyp. - CORRECT ANSWER - A)
polyp
B) medusa
,C) polyp
D) polyp
E) medusa
F) medusa
Members of what group of invertebrates would be most likely to thrive in a desert environment?
- CORRECT ANSWER - B) anthropoda
Which of the following are key features of Chordata? Select all that apply. - CORRECT
ANSWER - A) pharyngeal slits
C) post-anal tail
E) a notochord
F) dorsal hollow nerve cord
Echinoderm habitat is - CORRECT ANSWER - C) exclusively marine
Which of the following are associated with Arthropoda? Select all that apply. - CORRECT
ANSWER - B) book lungs
Which of the following are the most dominant aquatic anthropods - CORRECT
ANSWER - A) crustaceans
Which of the following are associated with Arthropoda? Select all that apply - CORRECT
ANSWER - A) have jointed appendages
C) contain approximately 85% of all animals
E) contain a group of extinct organisms known as trilobites
Tapeworm parasites of humans can sometimes be transmitted by - CORRECT ANSWER -
B) eating undercooked pork, beef, or fish.
, Two features that are enhanced in annelids due to being segmented are - CORRECT
ANSWER - D) increased size by adding compartments and more efficient movements
Which class includes all cnidarians that do not have a medusa stage as part of their life cycle? -
CORRECT ANSWER - C) antozoa
Which of the following is the most venomous group of all the cnidarians? - CORRECT
ANSWER - D) Cubozoa
Members of the phylum Cnidaria have radial and biracial symmetry and are diploblastic,
meaning they - CORRECT ANSWER - A) develop from two embryonic layers
The only phylum in the group Parazoans is - CORRECT ANSWER - Porifera
Which of the following is a defining characteristic of Parazoans? - CORRECT ANSWER -
A) lack of specialized tissues
Which of the following is a defining characteristic of invertebrates? - CORRECT
ANSWER - D) lack bony structures
Chitin in arthropods form the - CORRECT ANSWER - exoskeleton
Jellyfish belong to the Cnidarian Class - CORRECT ANSWER - B) scyphozoa
Sponges reproduce through
A) budding.
B) fragmentation.
C) sexual reproduction.
D) all of the choices are correct. - CORRECT ANSWER - D) all choices are correct
Exam Questions and CORRECT Answers
What difference during embryonic development distinguishes echinoderms from other
invertebrates like annelids or arthropods? - CORRECT ANSWER - 2) The blastopore
forms the anus, not the mouth.
During renovations, the natural history museum's specimens have gotten all mixed up. Sort each
of the specimens into their correct phylum.
C. capillata, the lion's mane jellyfish Select your answer
S. polymorpha, a large centipede Select your answer
M. australis, the giant Gippsland earthworm Select your answer
H. maculosa, the blue-ringed octopus Select your answer
C. elegans, a tiny roundworm - CORRECT ANSWER - 1- cnidaria
2- anthropoda
3- annelida
4- mollusca
5- nematode
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 Select your answerYou got it correct in
response to changes in Select your answerYou got it correct , using different species of Select
your answerYou got it correct - CORRECT ANSWER - 1 - nematocysts
2- pH
3- cnidarians
Categorize each of the six cnidarians as a medusa or a polyp. - CORRECT ANSWER - A)
polyp
B) medusa
,C) polyp
D) polyp
E) medusa
F) medusa
Members of what group of invertebrates would be most likely to thrive in a desert environment?
- CORRECT ANSWER - B) anthropoda
Which of the following are key features of Chordata? Select all that apply. - CORRECT
ANSWER - A) pharyngeal slits
C) post-anal tail
E) a notochord
F) dorsal hollow nerve cord
Echinoderm habitat is - CORRECT ANSWER - C) exclusively marine
Which of the following are associated with Arthropoda? Select all that apply. - CORRECT
ANSWER - B) book lungs
Which of the following are the most dominant aquatic anthropods - CORRECT
ANSWER - A) crustaceans
Which of the following are associated with Arthropoda? Select all that apply - CORRECT
ANSWER - A) have jointed appendages
C) contain approximately 85% of all animals
E) contain a group of extinct organisms known as trilobites
Tapeworm parasites of humans can sometimes be transmitted by - CORRECT ANSWER -
B) eating undercooked pork, beef, or fish.
, Two features that are enhanced in annelids due to being segmented are - CORRECT
ANSWER - D) increased size by adding compartments and more efficient movements
Which class includes all cnidarians that do not have a medusa stage as part of their life cycle? -
CORRECT ANSWER - C) antozoa
Which of the following is the most venomous group of all the cnidarians? - CORRECT
ANSWER - D) Cubozoa
Members of the phylum Cnidaria have radial and biracial symmetry and are diploblastic,
meaning they - CORRECT ANSWER - A) develop from two embryonic layers
The only phylum in the group Parazoans is - CORRECT ANSWER - Porifera
Which of the following is a defining characteristic of Parazoans? - CORRECT ANSWER -
A) lack of specialized tissues
Which of the following is a defining characteristic of invertebrates? - CORRECT
ANSWER - D) lack bony structures
Chitin in arthropods form the - CORRECT ANSWER - exoskeleton
Jellyfish belong to the Cnidarian Class - CORRECT ANSWER - B) scyphozoa
Sponges reproduce through
A) budding.
B) fragmentation.
C) sexual reproduction.
D) all of the choices are correct. - CORRECT ANSWER - D) all choices are correct
