Biology of Insects – Growth, Metamorphosis, and Reproduction (Fill-in-the-Blank)

A set of fill-in-the-blank flashcards covering insect growth and development, metamorphosis types, immature/pupal stages, and reproduction modes based on the provided notes.

The process of shedding the exoskeleton is called __.

ecdysis

The growth stage between each molt is called an __.

instar

The duration of an instar is termed a __.

stadium

Stages in the development of an insect: EGG leads to the __ stage.

larval stage

The three larval types described by Gullan & Cranston are polypod larva, oligopod larva, and __.

apodous

A polypod larva has cylindrical bodies with short thoracic legs and abdominal prolegs called __.

pseudopods

An oligopod larva lacks abdominal prolegs but has functional thoracic legs and frequently __ mouthparts.

prognathous

An apodous larva lacks true legs and is worm-like; they may be parasitoids living within other organisms as __.

parasitoids

Nymph is the immature stage of paurometabolous insects that resembles the adult and does not pass through a __ stage.

pupal

Two types of pupa: a pupa with movable mandibles is the __ pupa.

DECTICOUS

The ADECTICOUS pupa has non-movable mandibles and could be exarate or __.

obtect

Exarate means appendages project __ from the body.

freely

Obtect means appendages are cemented to the body and the cuticle is often __ sclerotized.

heavily

The pharate pupa is represented by mosquitoes (Diptera) and __ (Trichoptera).

caddisflies

The stage in insects that is responsible for reproduction and dispersal is the __.

adult

The four metamorphosis types are ametaboly, paurometaboly, hemimetaboly, and __.

holometaboly

The earliest insect forms showed direct development known as __.

ametabolism

Paurometabolous insects include cockroaches, grasshoppers, true __.

bugs

Insects under Pterygota may undergo __ development.

hemimetabolous or holometabolous

The source of metamorphosis is based on __ control.

hormonal

In paurometabolous metamorphosis the immature stage is called a __.

nymph

The order for dragonflies is __.

Odonata

The aquatic immature form of dragonflies is called a __.

naiad

In holometabolous metamorphosis, the pupal stage occurs between larva and __.

adult

Lepidoptera, Hymenoptera, and Diptera exhibit __ metamorphosis.

holometaboly

The immature stage in holometabolous insects is a __.

larva

The immature stages (plural) in holometaboly are called __.

larvae

Life cycle of a ladybird beetle belongs to the order __.

Coleoptera

Parthenogenesis is reproduction without fertilization of the egg cell and is found in aphids; the mode is called __.

parthenogenesis

Polyembryony is the phenomenon where more than one young hatch from one __.

egg

Paedogenesis is when the __ reproduces.

larva

Bisexual reproduction where females lay eggs is called __.

oviparity