Reading Quiz 6, Chapter 34

How can a human being prevent an infection of beef tapeworms? Select one: A. Don't eat raw meat (beef) B. Avoid walking bare foot near livestock C. Avoid contact with water near cattle e.g. ponds, lakes & streams. D. For humans that work with livestock, wear gloves when cleaning stalls/dairies where cattle feces may occur.

A. Don't eat raw meat (beef)

The larval stage called the cercaria (plural cercariae) is a dispersal stage in which of the following Platyhelminthe groups? Select one: A. Flukes (Trematoda) B. Free-living flatworms (Turbellaria) C. Tapeworms (Cercomeromorpha)

A. Flukes (Trematoda)

Match the phylum listed below with its respective clade. Annelids A. Lophotrochozoa B. Platyzoa C. Ecdysozoa

A. Lophotrochozoa

Match the following unique traits with their annelid subcategory respectively. Parapodium A. Marine worms/Poychaetes B. Earthworms/Oligochaeta C. Leeches/Hirudinae

A. Marine worms/Poychaetes

Match the following unique traits with their annelid subcategory respectively. Clitellum visible on mature adults all the time. A. Marine worms/Poychaetes B. Earthworms/Oligochaeta C. Leeches/Hirudinae

B. Earthworms/Oligochaeta

Velvet worms in the phylum Onchyophorans, a lineage that has survived since the Cambrian, share the same clade as which of the following worm phyla? Select one: A. Platyhelminthes B. Nematoda C. Annelida D. Nemerteans

B. Nematoda

Match the phylum listed below with its respective clade. Platyhelminthes A. Lophotrochozoa B. Platyzoa C. Ecdysozoa

B. Platyzoa

In most nematodes the male and female differ in form i.e. size or some other physical characteristic that makes it possible to distinguish separate sexes. This important concept seen in many different phyla or animals groups, including humans, is known as: Select one: A. Dioecious B. Sexual dimorphism C. Heterosexual morphology D. Reductionism

B. Sexual dimorphism

The most serious flatworm infection of people is a Trematode called schistosoma, which afflicts more than 200 million people, mostly in tropical latitudes. Once infected, where does this fluke live in the human?

Blood vessels

Use the statistics offered in your text to answer this question. Which worm infection of nematodes afflicts the MOST people worldwide? Hint: There are currently 7.3 billion people on the planet. Select one: A. Pinworms B. Trichinella C. Ascaris D. Filariasis

C. Ascaris

Match the phylum listed below with its respective clade. Nematoda A. Lophotrochozoa B. Platyzoa C. Ecdysozoa

C. Ecdysozoa

Match the following unique traits with their annelid subcategory respectively. Chitinous jaws and anticoagulant secretions A. Marine worms/Poychaetes B. Earthworms/Oligochaeta C. Leeches/Hirudinae

C. Leeches/Hirudinae

Refer to Table 33.2 in your text to answer the following question. Which group of worms features the highest number of species i.e. is most specious. Select one: A. Arrow worms B. Ribbon worms C. Nematode worms D. Segmented worms i.e. Annelids E. Flatworms

C. Nematode worms

Nematode worms move in an irregular, flailing manner. Though they can move effectively through water, moist soil or inside of a host they lack ______ muscles which means that they cannot change the diameter of their body in the same way that an earthworm can.

Circular

Annelids move by alternating contractions of two sets of muscles against a hydrostatic skeleton, i.e. a fluid filled sack like a water balloon. The ______ muscles can changed the diameter to decrease thereby the segment, constricts and the coelom cavity squeezes forward, the ______ on the other hand shortens the length of the segments and causes the segments to increase in diameter.

Circular; Longitudinal

Flatworms feature which of the following feeding styles? Select one: A. Scavengers B. Carnivores that hunt their prey C. Parasitic D. All of the above are true in flatworms/platyhelminthes

D. All of the above are true in flatworms/platyhelminthes

Lophotrochozoan is a clade, which is a subcategory of: Select one: A. Spiralia B. Ecdysozoa C. Protostomes D. Both Spiralia & Protostomes

D. Both Spiralia & Protostomes

Which of the following structures found in flatworms is associated with excretion i.e. liquid waste removal? Select one: A. Cerebral ganglia B. Pharynx C. Ciliated epithelial cells D. Flame cells

D. Flame cells

Which of the following is true of leeches? Incorporate information from Shape of Life film as well. Select one: A. They have separate sexes B. They can self fertilize C. All leeches suck blood D. Some demonstrate parental care of their young. E. All of the above are true

D. Some demonstrate parental care of their young.

Ribbon worms in the phylum Nemertea are in the clade(s): Select one: A. Protostomes B. Spiralia C. Lophotrochozoa D. Platyzoa E. All of the above except Platyzoa

E. All of the above except Platyzoa

Use the Animal Phyla Table in Chapter 33 and Figure 33.5 the phylogeny charts of animal phyla to interpret the conclusion for the following question. Which phyla of worms is most closely related to the nematodes? Select one: A. Nemertea B. Platyhelminthes C. Annelids D. Arrow worms - Chaetognatha E. Onychophorans - Velvet worms

E. Onychophorans - Velvet worms

Annelids like mollusks have an open circulatory system. Select one: True False

False

Which type of worm has representatives that may be terrestrial, marine or freshwater and use a stylet (something like a needle) at the end of an extendable proboscis to hunt: ______? Name the phylum.

Nemertea

Parasitic flatworms such as flukes, have been "lumped" into the subphylum Neodermata. This term, "neodermata" is translated to mean ______. (Two words)

New skin

Nemertean worms, also sometimes called proboscis worms, feature a unique type of coelom called a ______, which can be everted to power the proboscis that is used to capture food but may also be used for movement. Note: spelling must be exact!

Rhynchocoel

In tapeworms the attachment segment that has hooks and suckers which attaches to the host is called the ______, whereas the reproductive segments are called ______

Scolex; Proglottids

What feature do annelid worms and hyphae of fungi share in common structurally? Note: One word, must be exact spelling.

Septa

The free swimming larvae phase in lophotrochozoans is called: Note: Exact spelling required.

Trochophore

Annelids and Mollusks are in the same clade and both share certain traits related to embryologic cleavage in early development. Select one: True False

True

In some cases parasitic nematodes may be passed by animal vectors such as mosquitoes. Select one: True False

True

In the phylum of Platyhelminthes, phylogenetic evidence suggests parasitic lifestyles evolved from free living ancestors i.e. parasitism is considered more derived. Select one: True False

True

Lophophore bearing animals are sessile i.e. they sit in one place for all or most of their lives. Select one: True False

True

The largest known nematode is a parasite of sperm whales. Select one: True False

True

Use Table 33.2 in Raven and Johnson to answer the following question: Arrow worms in the phylum Chaetognatha may not be protostomes nor deuterostomes. Select one: True False

True