ENT 201 EXAM 1 NCSU EXAM STUDY
GUIDE 2026/2027 ACCURATE QUESTIONS
WITH CORRECT DETAILED SOLUTIONS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. What class are you taking? - ANSWER ✔ ENT 201 Insects and People (3
credits)
2. Name of your Professor? - ANSWER ✔ Clyde Sorenson
3. Professor's email? - ANSWER ✔
4. How many exams are there and how much do the exams count towards your
final grade? - ANSWER ✔ -3 exams
-80% of final grade
5. What 3 assignments do we have this semester? - ANSWER ✔ 1. Bug
scrapbook
2. Bug-in-dish experiments
3. Bug ID report
6. State 5 reasons ENT is important - ANSWER ✔ 1. Insects are all around us
2. Insects affect us and other species
3. There are large groups of insects
4. We must learn whether or not they are harmful
7. Name the "2 scales" - ANSWER ✔ Geological & human
8. How old are insects? - ANSWER ✔ 380 million years old
9. How old is flight? - ANSWER ✔ 250-280 millions years old
,10.Arthropods are how old? - ANSWER ✔ Half a billion years old
11.How old is earth? - ANSWER ✔ 4.6 billion years old
12.How long have people been around? - ANSWER ✔ 200,000 years
13.What is an Arthropod (2 things) and what have we studied that are
considered arthropods? - ANSWER ✔ -Trilobites and insects are
arthropods, meaning they are ancient ancestors of insects
-Arthropods are animals with jointed feet or legs
14.What are the 4 parts digestion? (3 guts, 1 gland) - ANSWER ✔ 1. Foregut:
ingestion of food and water, grinding, some storage, and minimal digestion
lined with cuticle
2. Midgut: digestion and absorption of nutrients, minerals, water, etc.
3. Hindgut: collects undigested food and wastes and packages for expulsion.
Also absorbs water. No digestion - lined with cuticle
4. Salivary glands: produces many substances (depending on the insect) such as
digestive enzymes, anticoagulants, silk, saliva, etc.
15.Excretion - ANSWER ✔ Undigested waste plus toxic nitrogen wastes
16.what are the first 2 distant ancestors to insects? - ANSWER ✔ trilobites,
horseshoe crabs
17.how old are trilobites? - ANSWER ✔ 400-600 million years
18.how old are horseshoe crabs? - ANSWER ✔ 350 million years
19.What are the first insect fossils? - ANSWER ✔ tiny, wingless, soft bodied
20.how old are the first insect fossils? - ANSWER ✔ 380 million years
,21.when were the most modern insect relatives present? - ANSWER ✔ 180
million years ago
22.what are 5 examples of bugs through history? - ANSWER ✔ cave
drawings, china silkworms, egypt honeybees, scarabs, greece body pests
23.who is the father of zoology?` - ANSWER ✔ aristotle
24.who was the first to catalog insect crop pests? - ANSWER ✔ theophrastus
25.who wrote Historia Naturales Book 11? - ANSWER ✔ pliny the elder
26.Who wrote Zoologia physica - ANSWER ✔ Johann Sperling
27.who wrote Historia Insectorum? - ANSWER ✔ John Ray
28.Who wrote Systema Naturae 10th -- the binomial system of nomenclature? -
ANSWER ✔ Linnaeus
29.Almost 2/3 of all identified living species are ______________. - ANSWER
✔ athropods
30.more than half of all identified living species are _____________. -
ANSWER ✔ insects
31.how many insect species have been identifed so far? - ANSWER ✔ about
1,000,000
32.there are about how many individual insects for every human? - ANSWER
✔ 200,000,000
33.what is the phylum of insects? - ANSWER ✔ arthropoda
34.what does arthropoda mean? - ANSWER ✔ jointed foot
35.what 4 features make up an insect? - ANSWER ✔ exoskeleton, segmented
body, jointed apendages, bilateral symmetry
, 36.what is the class for crabs, lobsters, etc.? - ANSWER ✔ crustacea
37.what is the class for centipedes? - ANSWER ✔ chilopoda
38.how many legs do centipedes have per body segment? - ANSWER ✔ 2
39.which insect has fangs? - ANSWER ✔ centipede
40.what is the class for millipedes? - ANSWER ✔ diploda
41.how many legs do millipedes have per body segment? - ANSWER ✔ 4
42.what is the class for spiders, scorpions, ticks, and mites? - ANSWER ✔
arachnida
43.which class has pedipalps? - ANSWER ✔ arachnida
44.how many body regions does an adult insect have? - ANSWER ✔ 3
45.how many legs does an adult insect have? - ANSWER ✔ 6
46.how many wings does an adult insect have? - ANSWER ✔ 0,2, or 4
47.name each level of classification from top to bottom - ANSWER ✔
kingdom phylum class order family genus species
48.what is the key to the exoskeleton? - ANSWER ✔ the cylinder shape
49.The exoskeleton can be either ________ and ________ or ________ and
___________. - ANSWER ✔ thick and rigid, thin and flexible
50.separates the inside of the insect from the outside - ANSWER ✔ basement
membrane
51.layer of cells that determines cuticle characteristics - ANSWER ✔
epidermis
GUIDE 2026/2027 ACCURATE QUESTIONS
WITH CORRECT DETAILED SOLUTIONS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. What class are you taking? - ANSWER ✔ ENT 201 Insects and People (3
credits)
2. Name of your Professor? - ANSWER ✔ Clyde Sorenson
3. Professor's email? - ANSWER ✔
4. How many exams are there and how much do the exams count towards your
final grade? - ANSWER ✔ -3 exams
-80% of final grade
5. What 3 assignments do we have this semester? - ANSWER ✔ 1. Bug
scrapbook
2. Bug-in-dish experiments
3. Bug ID report
6. State 5 reasons ENT is important - ANSWER ✔ 1. Insects are all around us
2. Insects affect us and other species
3. There are large groups of insects
4. We must learn whether or not they are harmful
7. Name the "2 scales" - ANSWER ✔ Geological & human
8. How old are insects? - ANSWER ✔ 380 million years old
9. How old is flight? - ANSWER ✔ 250-280 millions years old
,10.Arthropods are how old? - ANSWER ✔ Half a billion years old
11.How old is earth? - ANSWER ✔ 4.6 billion years old
12.How long have people been around? - ANSWER ✔ 200,000 years
13.What is an Arthropod (2 things) and what have we studied that are
considered arthropods? - ANSWER ✔ -Trilobites and insects are
arthropods, meaning they are ancient ancestors of insects
-Arthropods are animals with jointed feet or legs
14.What are the 4 parts digestion? (3 guts, 1 gland) - ANSWER ✔ 1. Foregut:
ingestion of food and water, grinding, some storage, and minimal digestion
lined with cuticle
2. Midgut: digestion and absorption of nutrients, minerals, water, etc.
3. Hindgut: collects undigested food and wastes and packages for expulsion.
Also absorbs water. No digestion - lined with cuticle
4. Salivary glands: produces many substances (depending on the insect) such as
digestive enzymes, anticoagulants, silk, saliva, etc.
15.Excretion - ANSWER ✔ Undigested waste plus toxic nitrogen wastes
16.what are the first 2 distant ancestors to insects? - ANSWER ✔ trilobites,
horseshoe crabs
17.how old are trilobites? - ANSWER ✔ 400-600 million years
18.how old are horseshoe crabs? - ANSWER ✔ 350 million years
19.What are the first insect fossils? - ANSWER ✔ tiny, wingless, soft bodied
20.how old are the first insect fossils? - ANSWER ✔ 380 million years
,21.when were the most modern insect relatives present? - ANSWER ✔ 180
million years ago
22.what are 5 examples of bugs through history? - ANSWER ✔ cave
drawings, china silkworms, egypt honeybees, scarabs, greece body pests
23.who is the father of zoology?` - ANSWER ✔ aristotle
24.who was the first to catalog insect crop pests? - ANSWER ✔ theophrastus
25.who wrote Historia Naturales Book 11? - ANSWER ✔ pliny the elder
26.Who wrote Zoologia physica - ANSWER ✔ Johann Sperling
27.who wrote Historia Insectorum? - ANSWER ✔ John Ray
28.Who wrote Systema Naturae 10th -- the binomial system of nomenclature? -
ANSWER ✔ Linnaeus
29.Almost 2/3 of all identified living species are ______________. - ANSWER
✔ athropods
30.more than half of all identified living species are _____________. -
ANSWER ✔ insects
31.how many insect species have been identifed so far? - ANSWER ✔ about
1,000,000
32.there are about how many individual insects for every human? - ANSWER
✔ 200,000,000
33.what is the phylum of insects? - ANSWER ✔ arthropoda
34.what does arthropoda mean? - ANSWER ✔ jointed foot
35.what 4 features make up an insect? - ANSWER ✔ exoskeleton, segmented
body, jointed apendages, bilateral symmetry
, 36.what is the class for crabs, lobsters, etc.? - ANSWER ✔ crustacea
37.what is the class for centipedes? - ANSWER ✔ chilopoda
38.how many legs do centipedes have per body segment? - ANSWER ✔ 2
39.which insect has fangs? - ANSWER ✔ centipede
40.what is the class for millipedes? - ANSWER ✔ diploda
41.how many legs do millipedes have per body segment? - ANSWER ✔ 4
42.what is the class for spiders, scorpions, ticks, and mites? - ANSWER ✔
arachnida
43.which class has pedipalps? - ANSWER ✔ arachnida
44.how many body regions does an adult insect have? - ANSWER ✔ 3
45.how many legs does an adult insect have? - ANSWER ✔ 6
46.how many wings does an adult insect have? - ANSWER ✔ 0,2, or 4
47.name each level of classification from top to bottom - ANSWER ✔
kingdom phylum class order family genus species
48.what is the key to the exoskeleton? - ANSWER ✔ the cylinder shape
49.The exoskeleton can be either ________ and ________ or ________ and
___________. - ANSWER ✔ thick and rigid, thin and flexible
50.separates the inside of the insect from the outside - ANSWER ✔ basement
membrane
51.layer of cells that determines cuticle characteristics - ANSWER ✔
epidermis
