7) insect morphology (body)

Question 1

collembola

Answer 1

ancient
not actually insects (in super-class Hexapoda)
two groups: elongate and globular
habitat: soil and leaf litter
diet of detritus
one of the most abundant macroscopic animals
<8mm long
<= 6 abdominal segments
have a furcula (springy tail)
collophore (allows movement of moisture)

Question 2

where are legs found on an insect

Answer 2

thoracic segment

Question 3

collembola (elongate)

Answer 3

<8mm long
<= 6 abdominal segments
have a furcula (springy tail) to escape predators and maybe unfavourable environments
collophore (allows movement of moisture)

Question 4

collembola (globular)

Answer 4

many are soil dwellers
look squashed up
furcula often reduced or even lost
thorax and abdomen fused

Question 5

honey bee leg functional morphology

Answer 5

modified for pollen transport (spur to dislodge pollen and pollen brush and basket for transport); claw to remain steady on plant

Question 6

honey bee classification

Answer 6

sub-class: Pterygota
division: Holometabola
order: Hymenoptera

Question 7

ovipositor/sting in bees and wasps

Answer 7

variation in structure and function in the order Hymenoptera
stings are a series of valves, usually used to lay eggs
e.g. in sub order symphyta (sawflies) valves adapted to saw plan tissues and wood to lay eggs bc it is moist in a plant
e.g. Aprocita Parasitica ovipositor pierces and deposits eggs, very long to limit proximity to host
bees don’t use it to lay eggs

Question 8

flee classification

Answer 8

division: holometabola
order: siphonaptera

Question 9

fleas morphology

Answer 9

division: holometabola
order: siphonaptera
external parasites that feed on blood
tube like moth parts: feeding on blood
laterally compressed bodies: movement through hair and feathers
hard, polished body with hairs and backwards spine to help move
tough body to withstand pressure e.g. scratching

Question 10

click beetle classification

Answer 10

sub-class: pterygota
division: holometabola
order: coleopetra

Question 11

click beetle: morphology - click mechanism

Answer 11

function: to regain normal walking position when they fall onto their back
a spine on ventral surface projects back into activity on mesothorax
this makes click noise and rolls beetle onto one side so it can use its legs

Question 12

order of praying mantis

Answer 12

mantodea