Question | Answer |
what are fossils? | remains of an orgamism that lived in the past |
fish that do not have jaws or scales | tawless fish |
purpose of a fish swim bladder | helps stabalize the fish at different level in the water |
life cycle of a frog | egg, tadpole, hind leg, adult leg, adult frog |
type of gas that moves into the lungs and blood stream | oxygen |
type of gas that moves out of the lungs and blood stream | carbon dioxide |
3 adaptation that help reptiles conserve water | eggs, skin, kidneys |
the word Amphibian means | a cold blooded, smoothed skin vertabrate |
difference between ectothermic and endothermic | ecto body temperature changes with environment vs endo does not change w? environment |
Difference between invertebrate and vertebrate | no vertabrate and vertabrate |
Chambers of a fish | 2 |
chamber of an amphibian | 3 |
chambers of a reptile | 3 |
molars | teeth aling w/ premolars grind food |
insulator | does not conduct heat well, helps heat escape |
species | a group of similar organisms |
monotreme | a mammal that lays eggs |
territory | occupied by an animal or group of animals |
lift | upward force |
contour feathers | helps give shape to the birds body |
down feathers | short, fluffy helps trap heat |
placenta | membrane the link between the developing embryo to the mother |
marsupial | whose young are born alive at an early stage of development |
mammary gland | organs that produce milk, mammals give off this milk |
circadian rhythm | behavior cycle that occurs over a period of a day |
society | a group of closely related animals |
behavior | actions an animal performs |
conditioning | process of learning to connect stimulus w/a good or bad event |
connective tissue | provides support |
ball - socket joints | feels certain motions, located in your shoulder |
osteoporosis | a condition in which the body's bones become weak and break easily |
heart | major organ of the circulatory system |
red blood cells | contains hemoglobin to carry oxygen |
arteries | vessel carries blood cells away from the heart |
veins | vessels carry blood to the heart |
hypertension | term for high blood pressure |
platelets | blood fragment that forms clots |
plasma | liquid part of blood |
fibrin | protein that forms a net of tiny fibers to help w/ clotting |
white blood cells | type of blood cells that fights disease |
dendrite | thread like extension of neuron that carries nerve impulses toward the cell body |
nerve impulse | message carried by a neuron |
sensory neuron | picks up stimuli from internal or external environment and converts it to a nerve impulse |
motor neuron | neuron that sends an impulse to a muscle |
synapse | tiny space between the end of an axon and the structure |
cerebellum | part of the brain that coordinates and helps maintain balance |
central nervous system | made up of the brain and spinal cord |
brain | controls most functions i the body |
spinal cord | thick column of nerve tissue closed enclosed by the vertabrate |
cerebrum | part of the brain the interprets input from the senses |
reflex | automatic response that occurs very rapidly |
interneuron | neuron that carries an impulse from one nerve to another |
organ system | circulatory system, digestive system, endocrine system, excretory system |
homestasis | an organisms internal enviornment is kept stable in spite of the changes of the external enviornment |
invoulunatary muscles | muscles that are not under consious control |
voluntary muscles | muscle that are under consious control |
epidermis | the outermost layer of skin |
dermis | lower layer of skin |
ligament | strong connective tissue that holds together the bones in a movable joint |
smooth muscles | involuntary muscles found in many internal organs |
skeletal muscles | muscles that are attached to the bones |
striated muscles | involuntary muscles that doesn't get tired |
cancer | an uncontrollable growth of cells |
pore | opening stretching where sweat reaches the surface of skin |
follicle | structure in the dermis where a strand of hair grows |
cardiac muscle | muscle only on the heart |