Chapter 17: Fish, Amphibians, and Reptiles

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BJU Life Science

the endoskeletons of all vertebrate animals have two parts:

a skull and a vertebral column

the walls of a vertebrate heart chamber are made of:

muscle

the central nervous system is made up of:

the brain and spinal cord

the structure that manufactures urine by filtering the blood:

kidney

a fish moves by:

flexing its entire body

lampreys and hagfish differ from other fish because they:

have no jaws

what organ do young amphibians have that the adults usually do not have?

gills

a frog's tongue is:

sticky, attached at the front of its mouth, and is used to catch food.

amphibian skin may:

secrete distasteful substances, be used in respiration, and be smooth and moist

the sense which snakes have:

sight and smell. However, they do not have ears so they can't hear.

cartilage

similar to but more flexible than bone

deoxygenated

describes blood that has a high carbon dioxide content

diaphragm

a muscle important to breathing. it is a thin layer of muscle which separates the chest chamber from the abdomen

spinal nerve

a nerve that branches off the spinal cord

small intestine

when food has been completely digested, it is absorbed through the walls of

liver

produces a greenish fluid called BILE which is necessary to break down fats.

the Komodo dragon is a very large:

lizard

it lays its eggs in long strings in the water:

toad

a fish that has no jaws:

lamprey and hagfish

a shark:

is a cartilage fish which has an endoskeleton made of cartilage and breathes under water with gills

tuatara

one- of-a kind reptile found only in New Zealand

terrapin

a freshwater turtle that may come onto land

pit viper

a kind of snake with heat detectors

how many sets of teeth does a frog have?

two

how many heart chambers does a shark have?

two

which of these four animals has no teeth? Shark, frog, snake, turtle?

turtle

which animal has undergone metamorphosis? Shark, frog, snake, or turtle?

frog

which animal has heat sensing pits? Shark, frog, snake, or turtle?

snake

which animal molts its scales regularly? Shark, frog, snake, or turtle?

snake

in a fishes gills:

deoxygenated blood collects oxygen from the water and becomes oxygenated

all lungs:

have many capillaries in which deoxygenated blood becomes oxygenated

the eye:

is a sensory organ made up of many sensory receptors

the tail of a tadpole:

is gradually broken down and used as nourishment which it develops into a frog. It doesn't just fall off.

what do all snakes eat?

meat

double hinged jaws

this allows snakes to open their mouths much wider than seems possible

of which species are more found in the United States? Crocodiles or alligators?

alligators

are turtles born with gills?

no. A turtle is a reptile and looks like a tiny adult turtle when it hatches from the egg.

biomimicry

a term which describes man's study of living things to discover better solutions for human problems.

estivation

the state of inactivity that amphibians may enter during hot, dry weather.

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