Entomology Test 1 Flashcards
T or F: Covers the external surface of an insect body and is made of cellulose
F-
Malpighian Tubules have a function identical to human intestines for removing waste. T or F
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.
T or F: Flies and wasps are considered primitive when compared to dragonflies, due to wing veining.
F
Insect mouth part types to Not include piecing, rasping, siphoning, or sponging
F
Leg modifications do not vary much from insect to insect, and are not utilized in identificatio
F
The simple eyes of some insects are termed “ocular globes.”
F
Most insects are unable to distinguish differences in light Spectrum
F
Insect leg and wing attachment points are at both the thorax and the abdominal segments.
F
The insect hindgut is the prime site of food digestion and absorption.
F
The insect circulatory system is nearly identical to that of mammals.
F
Relatively few insects are beneficial; most species cause crop or environmental damage.
F
Insects thrive in all environments and are found on all continents and in all oceans
F
Insects are ranked second, only to mammals, as the most dominant group of animals on earth
F
Insects have inhabited the earth for about 15 million years
F its 350 million actually
There are nearly 10,000 described species of insects
F- There are over 1,000,000 described species and it is estimated there may be 2-10 times that many.
Entomophagy is the fear of insects
F
Two reasons why many insect have been successful are their small size and the ability to fly.
T
Many species of insects are useful in genetics, medicine & forensics as well as food production
T
Most insects have a fairly low reproductive potential, leading to low evolution and adaptability.
F
Complete Metamorphosis allows insects to avoid food competition between adults and immature larvae.
T
Oviposition
The process by which the female lays eggs
Multivoltine
Insects cycle of more than one generation per year
Chitin
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.
Viviparous
some growth and develoment occurs before birth in this type
