In order to control the population of parasitic flukes that require snails as one of their host species, how could the fluke population be controlled?

Reproductive segments of a tapeworm that break off during digestive action inside a host's intestines

1-4 pairs of nerve cords that run the length of a flatworm's body; just under the muscle tissue

Serial repetition of similar body segments along an axis

Walls between individual segments of an annelid's body

Marine segmented worms that have a well-differentiated head with specialized sense organs; many have paired appendages; dioecious

Circulatory structure that runs from the pharynx to the anus of annelids; pumping organ with valves that receives blood from vessels and pumps the blood to hearts

Contractions of circular muscles that move earthworms forward in their environment; also moves food through our digestive tract

Segmented worms that lack septa and setae; they have a fixed number of segments; they are fluid-feeders and blood suckers with cutting plates in the mouth

Crustaceans with 5 pairs of walking legs, chelipeds, 3 pairs of maxillipeds, 2 pairs of antennae

Extendable, straw-like mouth part associated with many insects like butterflies and moths; another term for the trunk of an elephant

Opening in which air enters the trachea of an arthropod; typically 1 pair per body segment of thorax and

abdomen; may have valves or filters

Period of dormancy that typically occurs during the summer or dry season

Occurs when an animal's young develop in eggs outside the female's body

Arthropods with small chelicerae and large, pincer-like pedipalps; tail ends in a stinger; can be venomous

The orb weaver spider is well-known for its ability to make very intricate and elaborate webs. What appendages are used by the spider to manipulate the silk strands?

What group of arachnids is the most important medically and economically?

What muscle fibers within an animal’s body are designed for rapid movement?

Arthropods with mouthparts on anterior projection; chelicerae for ripping, tearing, gripping; cephalothorax

and abdomen fused and rounded; many carry disease

What type of circulatory system supplies the body and the lungs with blood separately?

What glands secrete mucus to help amphibians remain moist & facilitate cutaneous respiration?

Preservation of pre-adult features into adulthood, found in some salamander species (axolotls and mudpuppies)

Drastic change from larval to adult stage, includes changes in dietary needs, appearance, & habitats

Portion of a bird’s stomach that functions similar to our stomach, responsible for chemical digestion

Extend out from lungs and into the abdomen as well as the long bones; store fresh air and helps with buoyancy and temperature regulation

Bird with the fastest dive speed of 200mph

Why are birds’ feet resistant to damage from freezing?

Mobile skull with movable joints

What is an example of a bird that lays one egg each day for 10-12 days, sits on the nest after the last egg is laid, all chicks hatch within a couple hours of each other

Flightless bird that lacks a keeled sternum

Animals that feed on a diet of both plants and other animals, can be scavengers, can store food

Herbivorous mammals with complex four-chambered stomachs

Gnawing mammals with 2 pairs of constantly growing incisors used for gnawing; largest mammalian order

First part of the endoskeleton to form during embryonic development; replaced by bone during the development

of most vertebrates

Protective bony or cartilaginous structure that protects the brain of a vertebrate

Fast-acting hormone system that releases hormones directly into the blood stream

Process of forming bones; bone formation

Line of pores running the length of the body of a fish or shark; sense vibrations & movements in water

Developing young remain inside female’s uterus, attached to a yolk sac

Lower portion of a shark’s intestine; twisted internally to increase surface area & increase nutrient absorption

Area of a mollusk’s body that houses feeding, sensory, & locomotion organs

Two folds of skin that protect the soft insides of a mollusk's body and extend from the visceral mass and down each side of the body

The spiral winding of a gastropod's shell around an axis; can be to the left or right

Form when sand, parasite, or other foreign object becomes lodged between the shell and mantle of some bivalves

Structure used by cephalopods to move; water from mantle is forcefully expelled through this structure; it is flexible to aid in direction and steering

Which phrase best describes the pupil slits of a cephalopod?

How are filarial worms transmitted? In other words, how do they enter the body?

Why are free-living nematodes so important to the environment?

Thick, non-livng outer body covering of many invertebrates

Host species in which a parasitic larvae undergoes a portion of development before entering its next host

How do we become infected with Ascaris lumbricoides, human roundworm?

Anterior end curves like a hook; plates in mouth cut intestinal wall; suck blood; larvae penetrate skin

How do hookworm larvae enter the body?

Runs parallel to the blood vessels; removes body fluids from organs and muscles; removes infectious agents

“Cup animals”, larger jellyfish, moon jellies; medusa stage most prominent; can be luminescent; nematocysts

paralyze prey

Sea anemones, corals, and other “flower animals”; polyp stage only; can have calcium carbonate exoskeleton

Pit-like organ in roof of a snake’s mouth, removes scent molecules from forked tongue & transmits information to brain

Shelled vertebrate egg with 4 chambers, allows for rapid growth of large young in relatively dry environments

What determines the sex of turtle and crocodile hatchlings?

How do turtles move air in and out of their lungs?

Fastest land snake, reaches speeds of 10-12mph, very aggressive and very venomous

Reptiles with kinetic skulls, non-movable eyelids and limited eye mobility, limbless, lack pectoral and pelvic girdles

Body temperature dependent on temperature of environment

Flagellated cells that line the inside of the sponge body; move water, nutrients, and wastes