45 / 48
45
S
eries
G
lossary
of
K
ey
T
erms
Alleles
different forms of a gene; offspring inherit one allele from each parent
Amphibian
a cold-blooded organism who lives in the water during its early life and then on land
as an adult
Behavior
the actions of an animal
Conditioning
a type of learning where an animal reacts to either a good or a bad response to an ac-
tion
Dominant
the allele that provides a trait that always appears in the organism
Genes
information within the DNA of a cell that controls a specific trait
Instinct
a behavior an organism is born with which it does right the first time
Lift
the difference in pressure between the top of a bird, or airplane, wing and the bottom, en-
abling flight to occur
Poaching
the illegal hunting of animals
Recessive
an allele that is masked by a dominant allele
Reptile
a cold-blooded animal that lays eggs on land and has dry, scaly skin
Traits
characteristics of an organism that are passed to the next generation