MCQ Collection
Pakistan MCQs
Practice Pakistan questions with answers and explanations.
Choose an option to check your answer.
A.
lateral epidermal sheets move to close the dorsal side of the embryo
B.
spiracles close permanently
C.
the gut pumps hemolymph
D.
adult wings detach after mating
Show Answer
Correct Answer: A. lateral epidermal sheets move to close the dorsal side of the embryo
Explanation:
Dorsal closure is an embryonic morphogenetic event where tissue sheets meet and seal the dorsal surface. It is a key step in insect development.
Choose an option to check your answer.
A.
pumps hemolymph into wings
B.
secretes molting hormone
C.
stores sperm in many female insects
D.
detects light intensity
Show Answer
Correct Answer: C. stores sperm in many female insects
Explanation:
A spermatheca allows females of many insects to store sperm after mating. Stored sperm may fertilize eggs later, improving reproductive flexibility.
Choose an option to check your answer.
A.
instant conversion of larvae into eggs
B.
permanent loss of reproduction
C.
continuous feeding without rest
D.
a hormonally regulated pause that helps survive unfavorable conditions
Show Answer
Correct Answer: D. a hormonally regulated pause that helps survive unfavorable conditions
Explanation:
Diapause is a developmental arrest synchronized with seasonal stress such as cold or drought. Hormonal control helps insects survive until conditions improve.
Choose an option to check your answer.
A.
pumps hemolymph into wings
B.
secretes molting hormone
C.
stores sperm in many female insects
D.
detects light intensity
Show Answer
Correct Answer: C. stores sperm in many female insects
Explanation:
A spermatheca allows females of many insects to store sperm after mating. Stored sperm may fertilize eggs later, improving reproductive flexibility.
Choose an option to check your answer.
A.
a hormonally regulated pause that helps survive unfavorable conditions
B.
continuous feeding without rest
C.
instant conversion of larvae into eggs
D.
permanent loss of reproduction
Show Answer
Correct Answer: A. a hormonally regulated pause that helps survive unfavorable conditions
Explanation:
Diapause is a developmental arrest synchronized with seasonal stress such as cold or drought. Hormonal control helps insects survive until conditions improve.
Choose an option to check your answer.
A.
secretes molting hormone
B.
detects light intensity
C.
pumps hemolymph into wings
D.
stores sperm in many female insects
Show Answer
Correct Answer: D. stores sperm in many female insects
Explanation:
A spermatheca allows females of many insects to store sperm after mating. Stored sperm may fertilize eggs later, improving reproductive flexibility.
Choose an option to check your answer.
A.
instant conversion of larvae into eggs
B.
continuous feeding without rest
C.
a hormonally regulated pause that helps survive unfavorable conditions
D.
permanent loss of reproduction
Show Answer
Correct Answer: C. a hormonally regulated pause that helps survive unfavorable conditions
Explanation:
Diapause is a developmental arrest synchronized with seasonal stress such as cold or drought. Hormonal control helps insects survive until conditions improve.
Choose an option to check your answer.
A.
secretes molting hormone
B.
pumps hemolymph into wings
C.
detects light intensity
D.
stores sperm in many female insects
Show Answer
Correct Answer: D. stores sperm in many female insects
Explanation:
A spermatheca allows females of many insects to store sperm after mating. Stored sperm may fertilize eggs later, improving reproductive flexibility.
Choose an option to check your answer.
A.
permanent loss of reproduction
B.
continuous feeding without rest
C.
instant conversion of larvae into eggs
D.
a hormonally regulated pause that helps survive unfavorable conditions
Show Answer
Correct Answer: D. a hormonally regulated pause that helps survive unfavorable conditions
Explanation:
Diapause is a developmental arrest synchronized with seasonal stress such as cold or drought. Hormonal control helps insects survive until conditions improve.
Choose an option to check your answer.
A.
gametes are released through spiracles
B.
fertilization happens inside the wing veins
C.
sperm is transferred inside the female reproductive tract
D.
eggs are fertilized only in seawater
Show Answer
Correct Answer: C. sperm is transferred inside the female reproductive tract
Explanation:
Most insects use internal fertilization. This protects gametes from drying and supports reproduction in terrestrial environments.
Choose an option to check your answer.
A.
colonies lack chemical communication
B.
workers reproduce equally in every colony
C.
all individuals live alone without interaction
D.
division of labor and communication improve colony success
Show Answer
Correct Answer: D. division of labor and communication improve colony success
Explanation:
Social insects such as bees, ants, and termites show cooperation, division of labor, and communication. These traits allow colonies to function as highly organized units.
Choose an option to check your answer.
A.
fertilization happens inside the wing veins
B.
eggs are fertilized only in seawater
C.
gametes are released through spiracles
D.
sperm is transferred inside the female reproductive tract
Show Answer
Correct Answer: D. sperm is transferred inside the female reproductive tract
Explanation:
Most insects use internal fertilization. This protects gametes from drying and supports reproduction in terrestrial environments.
