PARASITOLOGY - ENTOMOLOGY I EXAM 1 /
COMPLETE STUDY GUIDE / ACTUAL 100+
ACCURATE QUIZZES WITH DETAILED,
VERIFIED ANSWERS / A GRADE / 2025
What is Entomology? - ANS-( Greek : entomon = insects ): The study of insects.
The study of insects is part of a large phylum, what is this phylum and its definition? - ANS-The
Arthropoda
Animals with jointed appendages with an external or exoskeleton
Describe the geographical distribution of Arthropoda. - ANS-Among the most abundant and widespread
of all terrestrial animals: Found in practically all habitats including the sea (only few are found there ).
Found in freshwater, in soils and most important as parasites in and on body surfaces of plants and
animals
What are the 3 distinct regions of the body plan of arthropoda? - ANS-The head, the thorax and the
abdomen
What region of the arthropod body Bears a pair of eyes which may be simple or compound, a pair of
antennae and mouthparts.? - ANS-the head
Describe the arthropod thorax. How many parts does is it divided into, where are the legs, what is the
wing situation? - ANS-the anterior part or the prothorax ,
the middle part or the mesothorax
the posterior part or the metathorax.
Each part bears a pair of legs.
The thorax may have one or two pairs of wings , or the wings may not be present altogether.
What is unique about the genitalia of the arthropod abdomen? - ANS-Consists of not more than 11
segments , the last one or two being modified into external genitalia.
What is the basic physiology of the metabolic process of gaseous exchange in arthropods? - ANS-this is
carried out by an elaborately branched tracheal system which communicates with the exterior by
spiracles
, What is the basic physiology of the metabolic process of the digestive system in arthropods? - ANS-
consists of a foregut, which is provided with salivary glands, midgut and hindgut.
What is the basic physiology of the metabolic process of the circulatory system in arthropods? - ANS-
consists of a heart and a haemocoel. There are no blood vessels.
What is the basic metabolic process of the reproductive system of arthropods - ANS-separate.
Fertilization is internal although a few exhibit parthenogenesis.
Most insects are oviparous. A few are viviparous. Parthenogenesis occurs in some groups.
Define oviparous and viviparous. - ANS-Lay eggs
Give rise to live young
What are the 2 types of metamorphosis? - ANS-a) complete (holometabolous).
b) incomplete (hemimetabolous).
What occurs in complete (holometabolous) metamorphosis? - ANS-Egg Larva Pupa Adult
What occurs in incomplete (hemimetabolous) metamorphosis? - ANS-Egg Nymph Adult
What is the term for each stage in the arthropod life cycle?
How is the change from one stage to another acheived?
What is this process under the control of? - ANS-- instar
- achieved through a process called moulting or metamorphosis.
- shedding of the exoskeleton and is under hormonal control.
What is diapause and the advantage of it? - ANS-a stage of physiological dormancy or arrested
development.
enables them to survive through adverse environmental conditions.
What are the 2 taxonomic sub-classes of arthropoda? Define them. - ANS-S/c. Apterygota (Gk. a: not ;
pterygotos: winged).
These are primitively wingless with little or no metamorphosis.
S/c. Pterygota:
These are usually winged , but if wingless , this is a secondary condition.
What are the 2 divisions of Pterygota and which is holo and which is hemi metabolous? - ANS-
Exopterygota - incomplete metamorphosis/hemitabolous
Endopterygota - complete metamorphosis/holometabolous
What are some roles of beneficial insects that lend to the importance of insects to human welfare? -
ANS-Production of useful substances. (honey, beeswax, silk dyes, drugs)
Cross-fertilization of crops.
Predators destroying pests.
COMPLETE STUDY GUIDE / ACTUAL 100+
ACCURATE QUIZZES WITH DETAILED,
VERIFIED ANSWERS / A GRADE / 2025
What is Entomology? - ANS-( Greek : entomon = insects ): The study of insects.
The study of insects is part of a large phylum, what is this phylum and its definition? - ANS-The
Arthropoda
Animals with jointed appendages with an external or exoskeleton
Describe the geographical distribution of Arthropoda. - ANS-Among the most abundant and widespread
of all terrestrial animals: Found in practically all habitats including the sea (only few are found there ).
Found in freshwater, in soils and most important as parasites in and on body surfaces of plants and
animals
What are the 3 distinct regions of the body plan of arthropoda? - ANS-The head, the thorax and the
abdomen
What region of the arthropod body Bears a pair of eyes which may be simple or compound, a pair of
antennae and mouthparts.? - ANS-the head
Describe the arthropod thorax. How many parts does is it divided into, where are the legs, what is the
wing situation? - ANS-the anterior part or the prothorax ,
the middle part or the mesothorax
the posterior part or the metathorax.
Each part bears a pair of legs.
The thorax may have one or two pairs of wings , or the wings may not be present altogether.
What is unique about the genitalia of the arthropod abdomen? - ANS-Consists of not more than 11
segments , the last one or two being modified into external genitalia.
What is the basic physiology of the metabolic process of gaseous exchange in arthropods? - ANS-this is
carried out by an elaborately branched tracheal system which communicates with the exterior by
spiracles
, What is the basic physiology of the metabolic process of the digestive system in arthropods? - ANS-
consists of a foregut, which is provided with salivary glands, midgut and hindgut.
What is the basic physiology of the metabolic process of the circulatory system in arthropods? - ANS-
consists of a heart and a haemocoel. There are no blood vessels.
What is the basic metabolic process of the reproductive system of arthropods - ANS-separate.
Fertilization is internal although a few exhibit parthenogenesis.
Most insects are oviparous. A few are viviparous. Parthenogenesis occurs in some groups.
Define oviparous and viviparous. - ANS-Lay eggs
Give rise to live young
What are the 2 types of metamorphosis? - ANS-a) complete (holometabolous).
b) incomplete (hemimetabolous).
What occurs in complete (holometabolous) metamorphosis? - ANS-Egg Larva Pupa Adult
What occurs in incomplete (hemimetabolous) metamorphosis? - ANS-Egg Nymph Adult
What is the term for each stage in the arthropod life cycle?
How is the change from one stage to another acheived?
What is this process under the control of? - ANS-- instar
- achieved through a process called moulting or metamorphosis.
- shedding of the exoskeleton and is under hormonal control.
What is diapause and the advantage of it? - ANS-a stage of physiological dormancy or arrested
development.
enables them to survive through adverse environmental conditions.
What are the 2 taxonomic sub-classes of arthropoda? Define them. - ANS-S/c. Apterygota (Gk. a: not ;
pterygotos: winged).
These are primitively wingless with little or no metamorphosis.
S/c. Pterygota:
These are usually winged , but if wingless , this is a secondary condition.
What are the 2 divisions of Pterygota and which is holo and which is hemi metabolous? - ANS-
Exopterygota - incomplete metamorphosis/hemitabolous
Endopterygota - complete metamorphosis/holometabolous
What are some roles of beneficial insects that lend to the importance of insects to human welfare? -
ANS-Production of useful substances. (honey, beeswax, silk dyes, drugs)
Cross-fertilization of crops.
Predators destroying pests.
