insects

Question 1

what is an insect

Answer 1

an arthropod

Question 2

how many body parts does an insect have

Answer 2

3

Question 3

how many legs does an insect have

Answer 3

6

Question 4

what type of eyes does an insect have

Answer 4

compound

Question 5

how many pairs of antenna does an insect have

Answer 5

1

Question 6

how many pairs of wings do most insects have

Answer 6

2

Question 7

how old are insects

Answer 7

the oldest group is 440myo

Question 8

what are the closest relatives to insects

Answer 8

crustaceans

Question 9

what is the total number of described species

Answer 9

2 131 499

Question 10

what is the total number of animal species

Answer 10

1 566 314

Question 11

what is the total number of described insect species

Answer 11

1 053 578

Question 12

how many hexapod orders are there

Answer 12

31

Question 13

how many insect orders are there

Answer 13

28

Question 14

what are some examples of non-insect hexapods

Answer 14

protura (coneheads), collembola (springtails), and diplura (2 pronged bristletails)

Question 15

where do non insect hexapods live

Answer 15

in soil and leaf litter

Question 16

what are non insect hexapods mouthparts contained in

Answer 16

gnathal pouch

Question 17

how many apterygota orders are there

Answer 17

2

Question 18

what are the 2 apterygota orders called

Answer 18

archaeognatha (bristletails), and zygentoma (silverfish)

Question 19

what are some features of apterygota

Answer 19

ancestrally wingless, are 6-30mm in size, and have indirect fertilisation

Question 20

how many paleopteran orders are there

Answer 20

2

Question 21

what does paleoptera mean

Answer 21

wings held upright or outstretched at rest

Question 22

what does neoptera mean

Answer 22

wings held flat over body at restwh

Question 23

at are some examples of paleopteran insects

Answer 23

mayflies, dragonflies and damselflies

Question 24

how many hemmatabola orders are there

Answer 24

13

Question 25

how do hemimatabola grow in size

Answer 25

they just get bigger, no change in morphology at different stages

Question 26

how many holometabola orders are there

Answer 26

11

Question 27

how do holometabola grow in size

Answer 27

metamopheses

Question 28

what are some examples of hemimatobolous insects

Answer 28

homiptera (bugs), orthoptera (crickets, grasshoppers, locusts), blattodea (cockroaches and termites), and phasmatodea (stick and leaf insects)

Question 29

what are some examples of holometabolous insects

Answer 29

coleoptera (beetles), lepidoptera (butterflies and moths), doptera (flies), and hymenoptera (wasps, bees, and ants)

Question 30

what are the 3 segmented parts of an insect called

Answer 30

head, thorax, and abdomen

Question 31

what are the layers of the exoskeleton in insects

Answer 31

procuticle (includes epicuticle, exocuticle, endocuticle, formation zone), epidermis, and basement layer

Question 32

is there tagmosis of segments in insects

Answer 32

ye

Question 33

what does tagmosis mean

Answer 33

division of an arthropod into tagmata (morphologically distinct region)

Question 34

how many segments is the head made up of and what are they called

Answer 34

7, and are labial, maxillary, mandibular, intercalary, antennal, ocular, and labral

Question 35

do insects have ocelli and what are they

Answer 35

yes, typically 3, and are light detecting organs on the top of the head in insects

Question 35

how many basic parts do insects have in their mouthparts and what are they called

Answer 35

5, and are called labrum, hypopharynx, mandibles, maxillae, labrium

Question 36

how many segments of the thorax in insects are there and what are thy called in order

Answer 36

3, prothorax, and the pterothorax made up of mesothorax and metathorax

Question 37

how many components do insects have in there leg and what are they

Answer 37

6, are coxa, trochanter, femur, tibia, tarsus and pretarsus

Question 38

what are the wings like in insects

Answer 38

are thin cuticular membranes supported by scelerotized veins. can have a pair of wings transformed into halters in flies, and hardened into elytra

Question 39

what type of nervous system do insects have

Answer 39

a paired central nerve cord with segmented ganglia, with a brain

Question 40

what is circulation type in insects

Answer 40

open circulatory system with haemolymph

Question 41

what are the 3 main parts to digestion in insect

Answer 41

foregut, midgut, and hindgut

Question 42

which parts have circular lining in insects

Answer 42

foregut and hindgut

Question 43

what does the foregut do in insects

Answer 43

ingestion, storage, grinding of food

Question 44

what does the midgut do in insects

Answer 44

digestive enzymes, and food absorbtion

Question 45

what does the hindgut do in insects

Answer 45

absorption of water salts etc, and waste removal. has the malphigian tubes

Question 46

what stages in insects are homologous

Answer 46

nymph and larval stages

Question 47

what stage is modified into pupae in insects

Answer 47

final larval stage

Question 48

what stage of holometaboly is homologous to the embryonic stage in hemimetaboly

Answer 48

the larval stage

Question 49

what are all nymphal stages considered in insects

Answer 49

pupal stages

Question 50

are insects diecious or hemaphorditic

Answer 50

mostly diecious apart form 1 tribe of scale insects

Question 51

how is sex determined in insects

Answer 51

genetically determined

Question 52

what type of genetic system is most common in insects

Answer 52

XY systems, although ZW systems are used in some species