PCA Exam Insects, Mites, and
Invertebrates exam questions with
correct answers
Chewing Mouthpart - CORRECT ANSWER-✔✔✅includes the labrum, mandibles, hypopharynx, and the
labrum-epipharynx
piercing-sucking mouthparts - CORRECT ANSWER-✔✔✅insect mouthparts in which a syringe-like
structure pierces plant cells and draws in its contents
Blood Feeding Mouthparts - CORRECT ANSWER-✔✔✅An elongated labium forms a protective sheath
for the stylet that carries enzymes that when the insect carries blood up it does not clot
rasping-sucking mouthparts - CORRECT ANSWER-✔✔✅Scrape the surface of the leaf away and then
feed on the sap using a cone shaped beak
Siphoning mouthparts - CORRECT ANSWER-✔✔✅Feeding tube is uncoiled and extended to suck liquids
into the mouth (butterfly)
Sponging mouthparts - CORRECT ANSWER-✔✔✅The mandibles and maxillae are nonfunctional, and
the remaining parts form a proboscis with a fan-shaped sponge at the tip, liquid food is mopped up by
the capillary action
Chewing-lapping mouthparts - CORRECT ANSWER-✔✔✅Modified mouthparts that occur in bees.
Includes a "tongue" that laps up liquids, as well as mandibles that can be used for various functions.
What orders of insects have chewing mouthparts - CORRECT ANSWER-✔✔✅Collembola, coleptera,
dermaptera, dictyoptera, diptera, ephemeroptera, hymenoptera, isoptera, lepidoptera, mecoptera,
neurtopera, odonata, orthoptera, plecoptera, psocoptera, thysanura
,what insect orders have piercing-sucking mouthparts - CORRECT ANSWER-✔✔✅hemiptera, diptera,
siphonaptera
How are piercing-sucking mouthparts different than chewing mouthparts - CORRECT ANSWER-
✔✔✅they have a modified labrum that acts as a pouch for protecting the maxillary stylets and
mandibles/maxillae that are sharpened like a needle
What are the main body parts of a adult insect - CORRECT ANSWER-✔✔✅head thorax and abdomen
What are the main body parts of a adult spider - CORRECT ANSWER-✔✔✅cephalothorax (head region)
abdomen, 8 legs
What are the main body parts of a adult mite - CORRECT ANSWER-✔✔✅cephalothorax, abdomen, 6
pairs of appendages- 4 legs and 2 pairs of mouthparts appendage
What is the proper name for catepillar like body type - CORRECT ANSWER-✔✔✅
What is the proper name for grublike like body type - CORRECT ANSWER-✔✔✅scarabaeiform
What is the proper name for maggotlike like body type - CORRECT ANSWER-✔✔✅vermiform
Haltere wing type - CORRECT ANSWER-✔✔✅a hindwing that is reduced to a knobbed guidance organ,
most commonly found in diptera family of true flies
Tegmina wing type - CORRECT ANSWER-✔✔✅front wings that are completely leathery or parchment
like in texture, most common in grasshopper or crickets
Hemelytra wing type - CORRECT ANSWER-✔✔✅Front wings that are leathery or parchment-like at the
base and membranous near the tip in some true bug species
Elytra wing type - CORRECT ANSWER-✔✔✅Hard, sclerotized front wings that serve as protective covers
for membranous hind wings, most common in beetle like species
, Scales wing type - CORRECT ANSWER-✔✔✅Membranous wings that may be coated with scale to
provide color, protection from predators, and temperature regulation
What is the function of the foregut in an insect - CORRECT ANSWER-✔✔✅Starts the breakdown of the
ingested food source
What is the function of the midgut in an insect - CORRECT ANSWER-✔✔✅continues the breakdown of
the food source by stripping away the nutritional portions of the food such as the proteins
What is the function of the hindgut in an insect - CORRECT ANSWER-✔✔✅final step in the digestive
system if an insect by pulling the moisture from the food and then passing it through the insects rectum
How does respiration take place - CORRECT ANSWER-✔✔✅insects used spiracles and tracheoles to
intake oxygen from the environment and expel carbon dioxide
Describe an insects circulatory system - CORRECT ANSWER-✔✔✅Insects operate with an open
circulatory system that means the hemolymph flows freely between muscle and body captivities, this
system is also responsible for moving hormones, nutrients, salts and other metabolic wastes. The
system is made up of three parts the dorsal vessel, and an aorta.
Describe an insects nervous system - CORRECT ANSWER-✔✔✅an insects nervous system is responsible
for receiving and integrating information from the environment and translating that information into a
series of reactions
What is a reflex action - CORRECT ANSWER-✔✔✅an action that is created purely from stimulus, no
brain activity is responsible for it
Describe the most common reproductive process in insects - CORRECT ANSWER-✔✔✅Sexual
reproduction starts with the fertilization of a viable egg with sperm that is passed through the oviduct of
a female
Invertebrates exam questions with
correct answers
Chewing Mouthpart - CORRECT ANSWER-✔✔✅includes the labrum, mandibles, hypopharynx, and the
labrum-epipharynx
piercing-sucking mouthparts - CORRECT ANSWER-✔✔✅insect mouthparts in which a syringe-like
structure pierces plant cells and draws in its contents
Blood Feeding Mouthparts - CORRECT ANSWER-✔✔✅An elongated labium forms a protective sheath
for the stylet that carries enzymes that when the insect carries blood up it does not clot
rasping-sucking mouthparts - CORRECT ANSWER-✔✔✅Scrape the surface of the leaf away and then
feed on the sap using a cone shaped beak
Siphoning mouthparts - CORRECT ANSWER-✔✔✅Feeding tube is uncoiled and extended to suck liquids
into the mouth (butterfly)
Sponging mouthparts - CORRECT ANSWER-✔✔✅The mandibles and maxillae are nonfunctional, and
the remaining parts form a proboscis with a fan-shaped sponge at the tip, liquid food is mopped up by
the capillary action
Chewing-lapping mouthparts - CORRECT ANSWER-✔✔✅Modified mouthparts that occur in bees.
Includes a "tongue" that laps up liquids, as well as mandibles that can be used for various functions.
What orders of insects have chewing mouthparts - CORRECT ANSWER-✔✔✅Collembola, coleptera,
dermaptera, dictyoptera, diptera, ephemeroptera, hymenoptera, isoptera, lepidoptera, mecoptera,
neurtopera, odonata, orthoptera, plecoptera, psocoptera, thysanura
,what insect orders have piercing-sucking mouthparts - CORRECT ANSWER-✔✔✅hemiptera, diptera,
siphonaptera
How are piercing-sucking mouthparts different than chewing mouthparts - CORRECT ANSWER-
✔✔✅they have a modified labrum that acts as a pouch for protecting the maxillary stylets and
mandibles/maxillae that are sharpened like a needle
What are the main body parts of a adult insect - CORRECT ANSWER-✔✔✅head thorax and abdomen
What are the main body parts of a adult spider - CORRECT ANSWER-✔✔✅cephalothorax (head region)
abdomen, 8 legs
What are the main body parts of a adult mite - CORRECT ANSWER-✔✔✅cephalothorax, abdomen, 6
pairs of appendages- 4 legs and 2 pairs of mouthparts appendage
What is the proper name for catepillar like body type - CORRECT ANSWER-✔✔✅
What is the proper name for grublike like body type - CORRECT ANSWER-✔✔✅scarabaeiform
What is the proper name for maggotlike like body type - CORRECT ANSWER-✔✔✅vermiform
Haltere wing type - CORRECT ANSWER-✔✔✅a hindwing that is reduced to a knobbed guidance organ,
most commonly found in diptera family of true flies
Tegmina wing type - CORRECT ANSWER-✔✔✅front wings that are completely leathery or parchment
like in texture, most common in grasshopper or crickets
Hemelytra wing type - CORRECT ANSWER-✔✔✅Front wings that are leathery or parchment-like at the
base and membranous near the tip in some true bug species
Elytra wing type - CORRECT ANSWER-✔✔✅Hard, sclerotized front wings that serve as protective covers
for membranous hind wings, most common in beetle like species
, Scales wing type - CORRECT ANSWER-✔✔✅Membranous wings that may be coated with scale to
provide color, protection from predators, and temperature regulation
What is the function of the foregut in an insect - CORRECT ANSWER-✔✔✅Starts the breakdown of the
ingested food source
What is the function of the midgut in an insect - CORRECT ANSWER-✔✔✅continues the breakdown of
the food source by stripping away the nutritional portions of the food such as the proteins
What is the function of the hindgut in an insect - CORRECT ANSWER-✔✔✅final step in the digestive
system if an insect by pulling the moisture from the food and then passing it through the insects rectum
How does respiration take place - CORRECT ANSWER-✔✔✅insects used spiracles and tracheoles to
intake oxygen from the environment and expel carbon dioxide
Describe an insects circulatory system - CORRECT ANSWER-✔✔✅Insects operate with an open
circulatory system that means the hemolymph flows freely between muscle and body captivities, this
system is also responsible for moving hormones, nutrients, salts and other metabolic wastes. The
system is made up of three parts the dorsal vessel, and an aorta.
Describe an insects nervous system - CORRECT ANSWER-✔✔✅an insects nervous system is responsible
for receiving and integrating information from the environment and translating that information into a
series of reactions
What is a reflex action - CORRECT ANSWER-✔✔✅an action that is created purely from stimulus, no
brain activity is responsible for it
Describe the most common reproductive process in insects - CORRECT ANSWER-✔✔✅Sexual
reproduction starts with the fertilization of a viable egg with sperm that is passed through the oviduct of
a female
