chap 2 A Flashcards
is a noncellular material
that is located on top of the epidermal
cell layer and constitutes the outermost
part of the integument.
Exoskeleton
major constituent of the
exoskeleton, or external skeleton, of
many arthropods such as insects,
spiders, and crustaceans
Chitin
Is a periodic shedding of
the cuticle followed by the
formation of a new cuticle
Molting
(3) process of molting
Apolysis
Ecdysis
Sclerotisation
the remains of an exoskeleton
and related structures that are
left after ecdysozoans have
moulted.
Exuvia
is a biological process by
which
an
animal
(ecdysozoans)
physically
develops including birth or
hatching,
involving
a
conspicuous and relatively
abrupt
change
in
the
animal’s
body
structure
through cell growth and
differentiation.
Metamorphosis
Types of Development
Ametabolous
Hemimetabolous
Paurometabolous
Holometabolous
Type of Reproduction
Oviparity
Viviparity
Parthenogenesis
Egg type
Singly-laid
Laid in Group
Singly laid
Sculptured egg
Elongated egg
Rounded egg
Nit
Egg with float
Laid in Group
Pedicellate
Barrel shape
Egg mass
Egg case
Egg pod
Egg raft
Ootheca
Number of broods generation produced in a year
Voltinism
Type of voltinism
Univoltine
Bivoltine
Mutlivoltine
the separation of old cuticle from underlying epidermis
as mediated in part by ecdysone hormone
Apolysis
actual shedding of the remnants of the old cuticle as
mediated by eclosion hormone
Ecdysis