COMPLETE 130+ REAL EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)/ NEWEST
2025/2026
How are Insects different from Arthropods? - ANSWER-Insects
have the following features:
Bodies are segmented into 3 sections - head, thorax, and
abdomen.
Head with one pair of antennae
Thorax with 3 pairs of legs
If they have wings, 2 pair
Abdomen has no locomotion appendages
Insects make up what percentage of all known species of
animals on Earth? -
ANSWER-85%
Diptera - ANSWER-Order containing flies
Blattodea - ANSWER-Order containing cockroaches and termites
Hemiptera - ANSWER-Order containing bed bugs
,Instars - ANSWER-Increments or stages that insects grow in,
due to their exoskeleton
Molt - ANSWER-As insects mature toward becoming an adult
must shed their exoskeleton before they can grow into the next
instar.
Molt is shedding of the exoskeleton to grow.
Metamorphosis - ANSWER-All insects go through several instars
where the outward appearance may change in size, color, shape,
and form as it matures to adulthood.
Stages of Insect Metamorphosis - ANSWER-Egg
Several immature stages (larva, nymph, or naiad)
Resting (Pupal)
Adult
Most insects do not grow or change after becoming an adult.
Most live and die in one and only adult exoskeleton
Different Categories of Insect Metamorphosis - ANSWER-
Gradual
Metamorphosis (Ametaboly)
Incomplete Metamorphosis (Pauro- and Hemimetaboly)
Complete Metamorphosis (Holometaboly)
,Gradual Metamorphosis (Ametaboly) - ANSWER-Insects the
develop without much visible change (except size) between their
immature instars to the adult.
Food and habitat do not change from immature to adult stages
Adult is wingless and looks like immature, except larger and
sexually active
EX: Silverfish and Springtails
Incomplete Metamorphosis (Pauro- and Hemimetaboly) -
ANSWER-Insects that undergo changes from egg through
several immature instars to winged adult. The immature stages
resemble the adult, in that they clearly have 3 body regions
(head, thorax, and abdomen) and six legs, except for wings.
Pauro- insects have an immature stage (nymphs) in the same
habitat. EX:
roaches, termites, lice
Hemi- insects have an immature stage (naiads) in the different
habitat. EX: dragonflies, mayflies, stoneflies. Immature develop
in water and adults live on land
, Complete Metamorphosis (Holometaboly) - ANSWER-Life cycle:
egg, several larval instars, a pupa stage, and a winged adult.
Appearance changes drastically.
Food and habitat changes.
EX: ants, bees, butterflied, flies, beetles
Roaches - ANSWER-Undergo Paurometaboly (incomplete
metamorphosis).
Immature to adult eat and live together.
Nocturnal. Omnivore. All carry disease and cause allergies.
Adult females lay 10-50 eggs in ootheca. Early instar never leave
and eat frass (feces)
Live in groups called "aggregations" in cracks, crevices, or
voids that provide darkness, moisture, and no air movement
German Cockroach - ANSWER-1/2 inch long. Tan with 2 dark
stripes running lengthwise behind the head
Egg to adult 4-15 weeks, adults live for 6-9 months
Adults have wings but cannot fly