UCR ENTM 010 MIDTERM ONE
2026 EXAM QUESTIONS AND
ANSWERS | 100% PASS
Describe the main tagma of an insect? - 🧠ANSWER ✔✔The main body
regions of the insect. These three regions are known as the head, the
thorax, and the abdomen
Define Tagma - 🧠ANSWER ✔✔The three distinct body regions of an insect:
the head, the thorax, and the abdomen
,Define Sclerite - 🧠ANSWER ✔✔Hardened plates that are held together by
flexible membranes which form the exoskeleton
Define Exoskeleton - 🧠ANSWER ✔✔A hard, tough, watertight covering that
covers the insect. The integument forms a very hard supportive shell
around the outside of the insect.
Define Cuticle - 🧠ANSWER ✔✔The portion of the exoskeleton we see
covering the insect. Composed of two layers of material, the procuticle and
the epicuticle.
Define Cellular Epidermis - 🧠ANSWER ✔✔A layer of cells that secretes the
basement membrane and the external cuticle (the rest of the exoskeleton)
Define Basement Membrane - 🧠ANSWER ✔✔The innermost component of
the exoskeleton, which connects the underlying tissues to the exoskeleton.
Define Chitin - 🧠ANSWER ✔✔A tough, durable polysaccharide similar to
cellulose and starch found in plants. Largely composes the Procuticle.
Define Sclerotin - 🧠ANSWER ✔✔A protein mixed within the Chitin
Define Scelrotinization - 🧠ANSWER ✔✔The biological processes that
cause tissues to become hard and stiff
, Name the benefits of an Exoskeleton - 🧠ANSWER ✔✔Retards water loss,
provides excellent defense, allows growth by molting, allows insects to fly,
provides shock absorption, and provides for the efficient use and
placement of muscles.
What limits the an insect's size? - 🧠ANSWER ✔✔Exoskeletons
What are the major components of an insect with Chewing Mouthparts? -
🧠ANSWER ✔✔The Labrum, Mandibles, Maxillae, Labium, and
Hypopharynx
What are the major components of an insect Piercing-Sucking Mouthparts?
- 🧠ANSWER ✔✔The Labium, Labrum, Mandibular Stylet, and Maxillary
Stylet
What are the functions of an insect's Antennae? - 🧠ANSWER ✔✔The ability
to perceive odors, touch, humidity, vibration, wind velocity, and direction.
Name the components of an insect's Antennae. - 🧠ANSWER ✔✔From the
head outward these parts are the scape, pedicel, and flagellum. The
pedicel contains Johnston's organ.
Compare and contrast the types of organs of vision that an insect
possesses. - 🧠ANSWER ✔✔Compound eyes are the major photoreceptive
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
2026 EXAM QUESTIONS AND
ANSWERS | 100% PASS
Describe the main tagma of an insect? - 🧠ANSWER ✔✔The main body
regions of the insect. These three regions are known as the head, the
thorax, and the abdomen
Define Tagma - 🧠ANSWER ✔✔The three distinct body regions of an insect:
the head, the thorax, and the abdomen
,Define Sclerite - 🧠ANSWER ✔✔Hardened plates that are held together by
flexible membranes which form the exoskeleton
Define Exoskeleton - 🧠ANSWER ✔✔A hard, tough, watertight covering that
covers the insect. The integument forms a very hard supportive shell
around the outside of the insect.
Define Cuticle - 🧠ANSWER ✔✔The portion of the exoskeleton we see
covering the insect. Composed of two layers of material, the procuticle and
the epicuticle.
Define Cellular Epidermis - 🧠ANSWER ✔✔A layer of cells that secretes the
basement membrane and the external cuticle (the rest of the exoskeleton)
Define Basement Membrane - 🧠ANSWER ✔✔The innermost component of
the exoskeleton, which connects the underlying tissues to the exoskeleton.
Define Chitin - 🧠ANSWER ✔✔A tough, durable polysaccharide similar to
cellulose and starch found in plants. Largely composes the Procuticle.
Define Sclerotin - 🧠ANSWER ✔✔A protein mixed within the Chitin
Define Scelrotinization - 🧠ANSWER ✔✔The biological processes that
cause tissues to become hard and stiff
, Name the benefits of an Exoskeleton - 🧠ANSWER ✔✔Retards water loss,
provides excellent defense, allows growth by molting, allows insects to fly,
provides shock absorption, and provides for the efficient use and
placement of muscles.
What limits the an insect's size? - 🧠ANSWER ✔✔Exoskeletons
What are the major components of an insect with Chewing Mouthparts? -
🧠ANSWER ✔✔The Labrum, Mandibles, Maxillae, Labium, and
Hypopharynx
What are the major components of an insect Piercing-Sucking Mouthparts?
- 🧠ANSWER ✔✔The Labium, Labrum, Mandibular Stylet, and Maxillary
Stylet
What are the functions of an insect's Antennae? - 🧠ANSWER ✔✔The ability
to perceive odors, touch, humidity, vibration, wind velocity, and direction.
Name the components of an insect's Antennae. - 🧠ANSWER ✔✔From the
head outward these parts are the scape, pedicel, and flagellum. The
pedicel contains Johnston's organ.
Compare and contrast the types of organs of vision that an insect
possesses. - 🧠ANSWER ✔✔Compound eyes are the major photoreceptive
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
3
STATEMENT. ALL RIGHTS RESERVED
