PSS FINAL EXAM questions with verified
answers already passed
Characteristics of Arthropods - correct answer ✔✔bilaterally symmetrical, joint appendages,
they molt, exoskeleton, segmented body, open circulatory system, brain is ganglia
Five Subphylum’s - correct answer ✔✔Hexapod (butterflies), Chelicerata (Scorpions or spiders),
Myriapoda ( Millipedes), Trilobites (extinct), and crustacea (shrimp)
Insect products used by humans - correct answer ✔✔Silk from silk worms, food like almonds,
made from chitin, red dye, and honey
4 ecological processes that require insects - correct answer ✔✔pollination, soil mixing, soil
formation, and recycling plant/animal material
7 level classification of binomial nomenclature - correct answer ✔✔Kingdom, phylum, class,
order, family, genus, species
Approximate number of plants - correct answer ✔✔310, 000
Approximate number of vertebrates - correct answer ✔✔62,000
Approximate number of invertebrates - correct answer ✔✔1.4 million
How many insects described? - correct answer ✔✔1 million insects described
, Generalized Insect Body - correct answer ✔✔Head, Thorax (prothorax, mesothorax,
metathorax), and abdomen
-1 pair of legs attached to each segment of thorax
-1 pair of wings attached to the mess and metathorax
Paurometabolous metamorphosis - correct answer ✔✔gradual...egg>nymph>adult
-immature differs from adult
Hemimetabolous metamorphosis - correct answer ✔✔Incomplete, immature and adult differ
considerably
Holometabolous metamorphosis - correct answer ✔✔complete...egg>larva>nymph>adult
Diapause - correct answer ✔✔The arrest of development to enhance survival of insect
generations
Instar - correct answer ✔✔developmental stage between molts until mature.
Molting - correct answer ✔✔The shedding of rigid exoskeleton to help insects grow
Nymph - correct answer ✔✔Immature form in hemimetabolous development
Larvae - correct answer ✔✔immature form in hemimetabolous development
Layers of integument - correct answer ✔✔epicuticle, exocuticle, endocuticle, subcuticular
space, basement membrane (epidermal cells)
answers already passed
Characteristics of Arthropods - correct answer ✔✔bilaterally symmetrical, joint appendages,
they molt, exoskeleton, segmented body, open circulatory system, brain is ganglia
Five Subphylum’s - correct answer ✔✔Hexapod (butterflies), Chelicerata (Scorpions or spiders),
Myriapoda ( Millipedes), Trilobites (extinct), and crustacea (shrimp)
Insect products used by humans - correct answer ✔✔Silk from silk worms, food like almonds,
made from chitin, red dye, and honey
4 ecological processes that require insects - correct answer ✔✔pollination, soil mixing, soil
formation, and recycling plant/animal material
7 level classification of binomial nomenclature - correct answer ✔✔Kingdom, phylum, class,
order, family, genus, species
Approximate number of plants - correct answer ✔✔310, 000
Approximate number of vertebrates - correct answer ✔✔62,000
Approximate number of invertebrates - correct answer ✔✔1.4 million
How many insects described? - correct answer ✔✔1 million insects described
, Generalized Insect Body - correct answer ✔✔Head, Thorax (prothorax, mesothorax,
metathorax), and abdomen
-1 pair of legs attached to each segment of thorax
-1 pair of wings attached to the mess and metathorax
Paurometabolous metamorphosis - correct answer ✔✔gradual...egg>nymph>adult
-immature differs from adult
Hemimetabolous metamorphosis - correct answer ✔✔Incomplete, immature and adult differ
considerably
Holometabolous metamorphosis - correct answer ✔✔complete...egg>larva>nymph>adult
Diapause - correct answer ✔✔The arrest of development to enhance survival of insect
generations
Instar - correct answer ✔✔developmental stage between molts until mature.
Molting - correct answer ✔✔The shedding of rigid exoskeleton to help insects grow
Nymph - correct answer ✔✔Immature form in hemimetabolous development
Larvae - correct answer ✔✔immature form in hemimetabolous development
Layers of integument - correct answer ✔✔epicuticle, exocuticle, endocuticle, subcuticular
space, basement membrane (epidermal cells)
