ENT 201 EXAM 1 EXAM SCRIPT 2026 TEST
PAPER QUESTIONS AND SOLUTIONS GRADED
A+
◉ When did the first insects appear?
Answer: about 420 million years ago
◉ What were the first insects like?
Answer: tiny, wingless, softbodied
◉ were relatives of most modern insects here before dinos?
Answer: yes
◉ Aristotle and Pliny's insect counts
Answer: wayyyy underestimate
◉ How many insect species have been identified?
Answer: around 1 million
◉ How long have insects been around?
Answer: about 400 million years
,◉ How are insects similar to NC?
Answer: they are the first in flight!
◉ Do insects outnumber everything else?
Answer: yes.
◉ What kingdom and phylum are insects in?
Answer: Animalia, arthropoda
◉ 4 Characteristics of Arthropods
Answer: jointed appendages, bilateral symmetry, chitinous
exoskeleton, segmentation
◉ Name 5 classes of Arthropod
Answer: Crustacea, chilopoda, diplopoda, arachnida, insecta
◉ Which class of arthropod can grow the biggest?
Answer: crustacea
◉ Crustacea
Answer: Crabs, lobsters
, 2 body regions, 10 legs, 4 antennae, aquatic
◉ Chilopoda
Answer: Centipedes
1 pair legs per segment, many segments, 2 antennae, fangs, dorso-
ventrally flattened
◉ Diplodopa
Answer: millipedes
2 pairs of legs per segment, many segments, 2 antennae, chewing
mouthparts
◉ arachnida
Answer: spiders, scorpions, ticks, mites
no antennae, eight legs, many with 2 body regions, pedipalps
◉ insecta
Answer: 3 body regions, 2 antennae, 0/2/4 wings, 6 legs
◉ What makes the class insecta unique?
Answer: Wings!
PAPER QUESTIONS AND SOLUTIONS GRADED
A+
◉ When did the first insects appear?
Answer: about 420 million years ago
◉ What were the first insects like?
Answer: tiny, wingless, softbodied
◉ were relatives of most modern insects here before dinos?
Answer: yes
◉ Aristotle and Pliny's insect counts
Answer: wayyyy underestimate
◉ How many insect species have been identified?
Answer: around 1 million
◉ How long have insects been around?
Answer: about 400 million years
,◉ How are insects similar to NC?
Answer: they are the first in flight!
◉ Do insects outnumber everything else?
Answer: yes.
◉ What kingdom and phylum are insects in?
Answer: Animalia, arthropoda
◉ 4 Characteristics of Arthropods
Answer: jointed appendages, bilateral symmetry, chitinous
exoskeleton, segmentation
◉ Name 5 classes of Arthropod
Answer: Crustacea, chilopoda, diplopoda, arachnida, insecta
◉ Which class of arthropod can grow the biggest?
Answer: crustacea
◉ Crustacea
Answer: Crabs, lobsters
, 2 body regions, 10 legs, 4 antennae, aquatic
◉ Chilopoda
Answer: Centipedes
1 pair legs per segment, many segments, 2 antennae, fangs, dorso-
ventrally flattened
◉ Diplodopa
Answer: millipedes
2 pairs of legs per segment, many segments, 2 antennae, chewing
mouthparts
◉ arachnida
Answer: spiders, scorpions, ticks, mites
no antennae, eight legs, many with 2 body regions, pedipalps
◉ insecta
Answer: 3 body regions, 2 antennae, 0/2/4 wings, 6 legs
◉ What makes the class insecta unique?
Answer: Wings!
