Term | Definition |
angiosperms & gymnosperms | two groups of seed plants |
bats | only mammals that can actually fly |
blue whale | largest mammal ever known |
body structure | most important basis for classifying living things |
bryophytes | plants without vascular systems |
carnivore | flesh-eating animal |
club moss | type of nonseed vascular plant |
colenterates | invertebrates that have tentacles with stinging cells; includes coral |
echinoderms | marine animals covered with spines; includes starfish & sand dollars |
echolocation | special system by which bats are able to find their prey |
endoskeleton | refers to an internal skeleton |
fern | plants with leaves called fronds |
flatworms | invertebrates that include flukes, tapeworms & planarians |
four | number of chambers in a mammal's heart |
herbivore | animal that eats only plants |
hibernation | term that refers to a dormant winter state in which body temperature drops close to the freezing point |
incisors | front cutting teeth of a mammal |
invertebrates | animals without backbones |
Linnaeus | Father of Taxonomy |
mammals | only animals that have a diaphragm |
mollusks | invertebrates that have a muscular foot & often an external shell |
moss | plant without a vascular system that often forms a ush, green coating on moist surfaces |
nematodes | invertebrates with long, slender; non-segmented bodies that taper at both ends; also called roundworms |
omnivore | animal that eats both plants and animals |
parasites | organisms hat live in or on other organisms & obtain nutrients from them |
placental | mammals whose young develop in a uterus or womb |
Ray | developed a modern definition of the word species |
scientific name | Genus species (italicized or underlined) |
segmented worms | invertebrates that include earthworms & leeches |
setae | Bristle-like structures that help segmented worms move |
sloth | slow-moving arboreal mammal with large claws |
species | distinct type of organism |
sponges | only multicellular animals without nervous system; also known as pore-bearers |
spores | tiny one-celled reproductive structures produced by certain nonseed plants |
taxonomy | science of classification |
tracheophytes | plants with vascular systems |
vertebrates | animals with backbones |
visceral hump | contains the internal organs of mollusks |
warm-blooded | term used to refer to animals that regulate their body temperature internally |
zoologist | biologist who study animals |