ent 101 module 4 Questions and Correct Answers |
Latest Update
passive dispersal
Ans: movement with other things, requires less energy, works best
when small. human assisted led to invasive species, little control over
dest
phoresy
Ans: symbiotic relationship, one smaller insect transported by larger ex.
Assignment Expert
flies on dung beetles
Guru01 - Stuvia
active dispersal
Ans: organism moves itself, usually allows to find better habitat
water striders
2026
Ans: skate across water using hydrophobic hair on tarsi, long legs,
increases bouyancy, uses midlegs to row and hind to steer
©
jet propulsion
Ans: used by dragonfly nymphs with chambers on rectum
how do mosquito pupas move
Ans: somersault in water (tumblers)
Marangoni propulsion
Ans: produce hydrophobic chemical mixture and excrete through anus,
lowers surface tension behind beetle to propel them forward
jumping
Ans: catapult mechanism sometimes elastic muscle contracts
, 2 for specific request mail
body segment muscles
Ans: each body segment has its own set of muscles
what do muscles operate with
Ans: work in tandem with muscle attachment sites
apodeme
Ans: thick ridges in the cuticle
what do muscle attachment sites contain
Assignment Expert
Ans: resilin (stretchy similar to tendons)
Guru01 - Stuvia
why are muscles more efficient in smaller bodies
Ans: when body size decreases volume and area dont decrease at the
same rate and muscles remain powerful
2026
how do soft bodied insects move
Ans: hydrostatic skeleton, muscles attach to body wall, operates on
©
turgidity (contract to create pressure)
6 leg segments
Ans: coxa, trochanter, femur, tibia, tarsus, pretarsus
tripod gait
Ans: maintain continuous contact with ground, keeps center of gravity
retraction
Ans: fore and hind legs on one side + mid leg on other push
protraction
Ans: remaining legs lifted from ground and moved forward