Fishes
Cartilaginous
A unique feature of birds is that their bones are __________.
Hollow
Snakes have fangs filled with __________ which they inject into their prey to kill or immobilize them.
Venom
An example of an amphibian with a tail is a _______________.
Salamander
Characteristics of mammals are that they: have a 4-chambered heart, they nurse their young with milk, they have a large well-developed brain and they have _________.
Hair
Fish take in oxygen through these organs rather than lungs.
Gills
Birds are _____________, which means they can control the temperature of their own bodies.
Endothermic
A fascinating adaptation of lizards is they have the ability to replace lost body parts which is called ____________.
Regeneration
The process by which a young amphibian changes into an adult is called _______________.
Metamorphosis
Mammals that gnaw because their teeth continually grow throughout their life as known as ____________.
Rodents
The 2 groups of jawless fish are the hagfish and these parasitic fish.
Lamprey
The process of replacing damaged and worn contour feathers in birds is known as ___________.
Molting
Why are alligators so ornery?
According to mamma, alligators are so ornery because they got all them teeth but no toothbrush
The larvae of a frog is known as a ______________.
Tadpole
The main types of mammals are: monotremes, marsupials and ______________.
Placentals
Fishes are ____________ which means their body temperature is determined by the water where they live.
Ectothermic
The ________ is enlarged in birds because it is where the large, powerful flight muscles attach to the skeleton.
Sternum
True or False: An adaptation of reptiles is that their unborn young develop in an amniote egg which means that they have a self-contained environment to help them grow and feed.
True - an amniote egg has 4 membranes covered by a shell. The membranes support, cushion and feed the developing organism.
3 chambers - 2 atria and a ventricle
Lemurs, monkeys, apes and humans are mammals that are classified as _______________.
Primates
What is the function of the operculum?
It is a bony structure that protects the gills beneath it.
A complete group of eggs laid by one female bird is known as a ___________.
Clutch
Snakes use this organ to help find prey by detecting odors in the air.
Jacobson's Organ
A frog has an extra membrane covering their eyes called a nictitating membrane. The function of this adaptation is to _______________.
Protect the eye and/or keep it moist
Moving from one area to another in search of food or breeding grounds is known as ______________.
Migration