Chapter
24 Terms
Chapter
24 Terms
Heterotroph-
organisms unable to create their own food and therefore must consume other
organisms in order to maintain their metabolic processes
Autotroph-organisms
capable of producing their own food from their environment
Consumer-eat
other critters & plants
Producer-produce
their own food
Locomotion-movement
Vertebrates-animals
w/a backbone
Invertebrates-
animals w/o a backbone
Aquatic-has
something to do with water
Terrestrial-
has something to do with land
Amphibious-
vertebrates-
spend part of their time on land and part in the water; must
return to the water to breed - have distinct larval and adult forms.
Sessile-not
motile not capable of locomotion - immobile
Motile- mobile
capable of locomotion
Digest-break
down into usable substances
Glycogen-polysaccharide
chains
animals store food as glycogen (fat)
Reproduction-production
of offspring
Fertilization-union
of gametes
Gamete-a
mature haploid reproductive cell that unites with another such cell of the
opposite sex to form a diploid zygote.
Zygote-the
cell resulting from the union of a male and female gamete, until it divides; the
fertilized ovum.
Blastula-single
layer of cells surrounding a fluid-filled space and is formed early in the
development of an animal embryo
Gastrula
structure
made up of 2 layers of cells early in the development of an animal embryo
Embryo-1.
the
stage of a multicellular organism that develops from a zygote before it becomes
free-living. 2.
specifically, in
vertebrates, the period from after the long axis appears until
all
major structures are represented. In humans,
this is from about two weeks after
fertilization to the end of the seventh or eighth week.
Chromosomes-
cell
structure that carries genetic material
Unicellular-
having
one cell
Cleavage- splitting/dividing
into two pieces
Ectoderm
inner
layer of skin
Endoderm
outer
layer of skin
Mesoderm
middle
layer of skin
Protostome- animal
with a mouth that develops from the opening of the gastrula
Deuterostome
animal
in which the anus develops from the opening in the gastrula
Symmetry refers to a balance in proportions of an object or
organism
Asymmetry animal thats irregular in shape
Radial symmetry adaptation that enables the animal to
detect & capture prey coming toward it from any direction
Bilateral symmetry can be divided down its length into
similar right and left halves that form mirror images of one another
Anterior head end
posterior tail end
ventral belly side
dorsal back side
aceolomate animals with three cell layers with a
digestive tract but no body cavities
pseudocoelom filled body cavity partly lined with
mesoderm
coelom body cavity completely surrounded by mesoderm
exoskeleton hard, waxy covering on outside of the
body that provides a framework for support
invertebrate animals without a backbone
endoskeleton support framework housed within the body
vertebrate animals with a backbone