1x 2x 3x 4x 5x Latin Flatworms & Roundworms Mollusks & Annelids Is it the Truth? 1x 2x 3x 4x...

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Latin Flatworms

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Roundworms

Mollusks & Annelids

Is it the Truth?

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Mystery Bag

Gaster-

(a) Fuel(b) Stomach(c) Expel(d) Churn

Pseudo-

(a) Real(b) Nutrition(c) False(d) Aquatic

-vascula

(a) With vessels (b) With light(c) With movement(d) With velocity

Mollusca

(a) Shelled(b) Little Rings(c) Tentacles(d) Soft-bodied

-chaete

(a) Bristle(b) Segment(c) Movement(d) Organ

Which organism would BEST represent the primary host of

a beef tapeworm?

(a) Cow (b) Human(c) Snail(d) Pig

Elephantiasis results from a filarial worm infection and

can cause severe swelling in the tissues of which human

body system?

(a) Digestive(b) Lymphatic(c) Circulatory(d) Nervous

Once inside the primary host, a tapeworm will latch onto the tissue of which organ?

(a) Esophagus(b) Stomach(c) Intestine(d) Kidney

A true coelom differs from a pseudocoelom in that a true

coelom…

(a) The cavity does not contain fluid(b) Body wall muscles are separated from the gut(c) Circulatory system is surrounded by endoderm(d) The cavity is filled with endoderm

A lack of a respiratory system in flatworms is compensated

for by their…

(a) Flat body plan(b) Bilateral symmetry(c) Gastrovascular cavity(d) Parasitic lifestyle

A larva of the trichina roundworm must encyst

itself into which type of host tissue?

(a) Adipose tissue(b) Muscle tissue(c) Nervous tissue(d) Epithelial tissue

A tapeworm can be introduced into a human host

through all the following improperly cooked foods

except…(a) Chicken(b) Beef(c) Fish (d) Pork

The mastax evolved in rotifers in order to enable

which of the following digestive actions?

(a) Chemical digestion(b) Mechanical digestion (c) Releasing acids(d) Manufacturing enzymes

Terrestrial snails differ from aquatic snails in that land

snails…

(a) Are hermaphroditic(b) Have separate sexes(c) Possess gills(d) Lack tentacles

Mosquitoes and leeches both secrete an anti-coagulant during feeding, a salivary secretion designed to…

(a) Prevent bacteria from entering bite(b) Allow host blood to flow freely(c) Initiate the platelets to begin clotting(d) Spread infection of intestinal bacteria

The radula, a feature of some mollusks BUT not of annelids,

is an adaptation used for…

(a) Feeding(b) Communication(c) Excretion(d) Reproduction

To move in a terrestrial environment, an earthworm

will use ALL the listed structures except…

(a) Setae(b) Mucus(c) Parapodia(d) Muscles

The circulatory system of a gastropod is BEST described

as…

(a) A closed-system(b) An open-system(c) Lacking a heart(d) Supporting a fast metabolism

(a) Having tentacles(b) Having setae(c) Inhabiting aquatics (d) Lacking setae

Leeches differ from both classes of oligochaetes and

polychaetes by…

The typhlosole of an earthworm is analogous to

which of the following human structures?

(a) Stomach mucosa(b) Oral cavity teeth(c) Intestinal villi(d) Esophageal epithelium

(a) True(b) False

A tapeworm is so highly specialized it does not require

a mouth, only a scolex and suckers.

In addition to carrying viruses, bacteria, and

protozoans, mosquitoes have been known to carry tiny

worms.

(a) True(b) False

Although hermaphroditic, earthworms require a mate in

order to cross-fertilize.

(a) True(b) False

Annelids are a class of segmented worms that lack a

complete digestive tract.

(a) True(b) False

Exchange of gases best occurs across a thick and dry membrane

like skin.

(a) True(b) False