Birds
What type of feathers provide lightweight insulation and warmth for birds?
A. amnion B. keratin C. plumage D. down
D. down
What is the name of the protective layer of a reptile egg?
A. amnion B. keratin C. milt D. shell membrane
A. amnion
What is the name of a fish's W-shaped bands of skeletal muscles?
A. myomeres B. alula C. ulna D. thorax
A. myomeres
What is the worm-like growing stage of complete metamorphosis called?
A. pupa B. nymph C. larva D. adult
C. larva
What substance makes up a birds feathers?
A. down B. keratin C. plumage D. rubber
B. keratin
What is the name of the food storage sac located in a bird's esophagus?
A. gizzard B. crop C. trachea D. clavicle
B. crop
The largest living reptiles are the what?
A. crustaceans B. arthropods C. Galapagos turtles
D. crocodilians
D. crocodilians
The gills of bony fish are covered by a hard, movable, protective plate called the what?
A. operculum B. scale C. ovipositor D. omasum
A. operculum
What is the technique of controlling insects using natural insects, pathogens, and parasites?
A. natural control B. biological control C. chemical control D. parasitic control
B. biological control
Built-in knowledge that an animal is born with is called what?
A. determinism B. mutualism C. instinct D. suspicion
What word refers to a bird's feathers?
A. molting B. milt C. plumage D. shell membrane
C. plumage
The Old-World lizards that are characterized by long necks and tails, powerful legs, and long, forked tongues are called what?
A. iguanids B. chameleons C. geckos D. monitor lizards
D. monitor lizards
What type of cartilaginous fish lacks jaws and does not have a sucking organ?
A. mussel B. hagfish C. barnacle D. ray
B. hagfish
What type of structure holds a moth during its pupal stage?
A. cocoon B. chrysalis C. pod D. backpack
A. cocoon
Animals that regulate their body temperature by external means are called what?
A. cold-blooded B. warm-blooded C. hypothermic D. genotoxic
A. cold-blooded
The large ridge on a birds sternum that provides an anchor for the flight muscles is called what?
A. ulna B. alula C. keel D. clavicle
C. keel
What are the world's smallest snakes?
A. mambas B. coral snakes C. blind snakes D. colubrids
C. blind snakes
Bony fish can stay suspended in water due to a gas-filled organ called a what?
A. gas bubble B. air bladder C. swim bladder D. proboscis
C. swim bladder
What is the scientific term for the "feelers" on an insect's head?
A. probes B. proboscis C. syrinx D. antennae
D. antennae
What special organ allows birds to produce sound?
A. vocal chords B. syrinx C. voice box D. keratin
B. syrinx
Birds can save energy by flapping for a few seconds and then gliding for a few seconds; what is this behavior called?
A. intermittent flight B. soaring C. powered flight D. hovering
A. intermittent flight
What type of crocodilian has a broad snout and hidden teeth when its jaw is closed?
A. crocodile B. gharial C. caiman D. alligator
D. alligator
Some fish have electric organs that are designed with current-generating cells called what?
A. electrocytes B. electrodes C. colubrids D. shockers
A. electrocytes
Paper wasps, hornets, and yellow jackets are all considered what kind of wasps?
A. colony B. grouped C. social D. killer
C. social
Because birds are designed with built-in compasses, they can follow the same migration route year after year. What are the routes called?
A. spring routes B. preening C. flyaways D. instinctual routes
C. flyaways