Science
What substance makes up the outher shell of a bird egg?
calcium carbonate
Paired holes used for inhalation by sharks and rays are ___________.
spiracles
Substance that makes up a bird's feathers.
keratin
What is the worm-like growing stage of complete metamorphosis called?
larva
Birds can save energy by flapping for a few seconds and then gliding for a few seconds' this behavior is called ______________.
What is the upper half of a turtle's shell called?
carapace
Lizards are able to change colors because of color-containing cells beneath their skins called _________.
chromatophores
Type of dormancy that sirens use to survive dry conditions
estivation
What is the grooming process that birds do often to keep their feathers healthy?
preening
scare predators
What is the largest known fish?
Whale shark
Because insects grow and become too big for their skeleton, they must go through a process of ______________.
molting
Changing of an immature hatchling to an adult.
metamorphosis
What special organ allows birds to produce sound?
syrinx
The group of amphibians that consists of frogs and toads is the ______________.
anurans
What is the hindmost section of an insect?
abdomen
A lizard-like reptile with a parietal eye is a(n)___________
tuatara
The protective layer of a reptile egg
amnion
The largest family of butterflies is the _____________ butterflies.
brush-footed
What group consists of carnivourous hunting birds?
birds of prey
The outside skeleton of an arthropod is called a(n) ______________
exoskeleton
Feathers that provide lightweight insulation
down
What is the scientific term for the "feelers" on an insect's head?
antennae
The large ridge on a bird's sternum that provides an anchor for the flight muscles is the _____________
keel