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Glossary
adaptation
any structure or behavior of
an organism that allows it to survive in its
environment
antenna (
plural
antennae)
the thin
feeler on the head of an animal like a
crayfish, an isopod, or an insect
aquatic
referring to water
behavior
the actions of an animal in
response to its environment
beneficial
good or advantageous
biologist
a scientist who studies living
organisms
camouflage
an adaptation that allows
an organism to blend into its environment
carapace
a hard outer shell that covers
the main part of the body of an animal
carnivore
an animal that eats only
animals
cartilage
the smooth, flexible material
that connects some bones and gives shape
to some body parts
chromosome
a structure that carries
genes
chrysalis
the hard-shelled pupa of a
moth or butterfly
contract
to become smaller or shorter in
length
cotyledon
the plant structure that
provides the germinated seed with food
crustacean
a class of mostly aquatic
animals with hard, flexible shells
detrimental
harmful or bad
DNA (deoxyribonucleic acid)
a
material that carries the genetic messages
of heredity
dormant
inactive or resting
egg
the first stage in an animal’s life cycle
embryo
the undeveloped plant within a
seed
endanger
to be at risk of becoming
extinct
environment
everything that surrounds
and influences an organism
evidence
data used to support claims.
Evidence is based on observations and
scientific data.
exoskeleton
any hard outer covering that
protects or supports the body of an animal
fingerprint
the ridges in your skin at
the tip of your fingers.
Arches
,
loops
, and
whorls
are fingerprint patterns.
flower
a plant structure that grows into
fruit
food chain
a description of the feeding
relationships between all the organisms in
an environment
fossil
any remains, trace, or imprint of
animal or plant life preserved in Earth’s
crust
fruit
a structure of a plant in which seeds
form
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