Entomology Test 1

Question 1

T or F: Covers the external surface of an insect body and is made of cellulose

Answer 1

F-

Question 2

Malpighian Tubules have a function identical to human intestines for removing waste. T or F

Answer 2

F-
Malpighian tubules
Functionally are like our kidneys.
They join the digestive tract where the
  midgut and hindgut unite.
Empty into the digestive tract.
Most insects have 2-6 malpighian tubules.

Question 3

T or F: Flies and wasps are considered primitive when compared to dragonflies, due to wing veining.

Answer 3

F

Question 4

Insect mouth part types to Not include piecing, rasping, siphoning, or sponging

Answer 4

F

Question 5

Leg modifications do not vary much from insect to insect, and are not utilized in identificatio

Answer 5

F

Question 6

The simple eyes of some insects are termed “ocular globes.”

Answer 6

F

Question 7

Most insects are unable to distinguish differences in light Spectrum

Answer 7

F

Question 8

Insect leg and wing attachment points are at both the thorax and the abdominal segments.

Answer 8

F

Question 9

The insect hindgut is the prime site of food digestion and absorption.

Answer 9

F

Question 10

The insect circulatory system is nearly identical to that of mammals.

Answer 10

F

Question 11

Relatively few insects are beneficial; most species cause crop or environmental damage.

Answer 11

F

Question 12

Insects thrive in all environments and are found on all continents and in all oceans

Answer 12

F

Question 13

Insects are ranked second, only to mammals, as the most dominant group of animals on earth

Answer 13

F

Question 14

Insects have inhabited the earth for about 15 million years

Answer 14

F its 350 million actually

Question 15

There are nearly 10,000 described species of insects

Answer 15

F- There are over 1,000,000 described species and it is estimated there may be 2-10 times that many.

Question 16

Entomophagy is the fear of insects

Answer 16

F

Question 17

Two reasons why many insect have been successful are their small size and the ability to fly.

Answer 17

T

Question 18

Many species of insects are useful in genetics, medicine & forensics as well as food production

Answer 18

T

Question 19

Most insects have a fairly low reproductive potential, leading to low evolution and adaptability.

Answer 19

F

Question 20

Complete Metamorphosis allows insects to avoid food competition between adults and immature larvae.

Answer 20

T

Question 21

Oviposition

Answer 21

The process by which the female lays eggs

Question 22

Multivoltine

Answer 22

Insects cycle of more than one generation per year

Question 23

Chitin

Answer 23

A polysaccharide similar to cellulose but has nitrogen as part of its structure.
Is tannish in color and flexible.
Is complexed with protein to form
microfibers.

Question 24

Viviparous

Answer 24

some growth and develoment occurs before birth in this type

Question 25

Spermatheca

Answer 25

sac-like structure in many female insects to store sperm after mating

Question 26

Parthenogenesis

Answer 26

Egg development without fertilization

Question 27

Polyembryony

Answer 27

more than one embryo develops from a single egg

Question 28

Vermiform

Answer 28

maggot-like, legless larval type, often without a well-developed head; common in Diptera

Question 29

Haploid

Answer 29

unfertilized (1N) egg description, developing into drones as a example in honeybees

Question 30

Diapause

Answer 30

physiological “dormant” condition in response to temporary adverse conditions

Question 31

Instar

Answer 31

Insect growth phase representing period between hatch and molt, or molt to molt

Question 32

Hemolymph

Answer 32

insects blood