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Module 4 - ENT 101 Exam with
complete solutions latest version
What is passive dispersal? - CORRECT ANSWER-insect is aided by external
forces to move (wind, water, other organisms)
What are invasive species? - CORRECT ANSWER-non-native species that have
been introduced into an ecosystem (usually by human actions) and cause harm
to the native species
What makes passive dispersal advantageous? - CORRECT ANSWER-minimal
energy use
What makes passive dispersal disadvantegous? - CORRECT ANSWER-insect has
little control over where they're going
What stage do insects most often partake in passive dispersal? - CORRECT
ANSWER-larval stage
Name some modes of passive dispersal? - CORRECT ANSWER-1. wind
2. phoresy
What is phoresy? - CORRECT ANSWER-where an insect hitch hikes on another at
no harm or benefit from to the other.
What is active dispersal? - CORRECT ANSWER-Movement that requires energy.
How does a water strider move? - CORRECT ANSWER-their tarsi are packed with
hydrophobic hairs that trap air at the point of contact, helps them not break the
surface tension of the water
What is marangoni propulsion? - CORRECT ANSWER-When the rove beetle falls
into the water, they excrete hydrophobic chemicals that propel them back
towards the shore
How do muscles attach to the cuticle? - CORRECT ANSWER-the apodeme
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What are apodemes? - CORRECT ANSWER-thickened cuticle ridges, the muscle
attaches to them
What is Reslin? - CORRECT ANSWER-elastic protien like a tendon, allows
flexibility to muscle attachment
where is reslin common? - CORRECT ANSWER-the joints
What is turgidity? - CORRECT ANSWER-The state of being turgid or swollen,
especially due to high fluid content.
what is a hydostatic skeleton? - CORRECT ANSWER-use opposing muscle
contractions to move the soft exoskeleton of larva, contraction and relaxation
allow for the directional movement
On top of muscle contractions, what helps the larva move directionally? -
CORRECT ANSWER-hooks or mouthparts
How many legs do hexapods have - CORRECT ANSWER-three pairs so six
What are the three throacic segments? - CORRECT ANSWER-1. Prothorax
2. Mesothorax
3. Metathorax
What are the six segments of the leg - CORRECT ANSWER-1. COXA
2. TROCHANTER
3. FEMUR
4. TIBIA
5. TARSUS
6. PRETARSUS
What's the f*ck*ss leg segment mnemonic? - CORRECT ANSWER-Cant, Troy,
Fight, Till, Taurus, Passes
What is Tipod gait? - CORRECT ANSWER-For stability during walking three legs
remain on the ground. Particularity in a triangle shape/ front and back on one side
and middle on the other.
What are cursorial legs? - CORRECT ANSWER-Running legs, most basic.Have
well developed femur and tibia, while other parts are slim for weight conservation
What are raptorial legs used for? - CORRECT ANSWER-grasping
What are modifications of raptorial legs? - CORRECT ANSWER-spikes on tibia
and femur
What are fossorial legs used for? - CORRECT ANSWER-digging
BRAINSCAPE1
Module 4 - ENT 101 Exam with
complete solutions latest version
What is passive dispersal? - CORRECT ANSWER-insect is aided by external
forces to move (wind, water, other organisms)
What are invasive species? - CORRECT ANSWER-non-native species that have
been introduced into an ecosystem (usually by human actions) and cause harm
to the native species
What makes passive dispersal advantageous? - CORRECT ANSWER-minimal
energy use
What makes passive dispersal disadvantegous? - CORRECT ANSWER-insect has
little control over where they're going
What stage do insects most often partake in passive dispersal? - CORRECT
ANSWER-larval stage
Name some modes of passive dispersal? - CORRECT ANSWER-1. wind
2. phoresy
What is phoresy? - CORRECT ANSWER-where an insect hitch hikes on another at
no harm or benefit from to the other.
What is active dispersal? - CORRECT ANSWER-Movement that requires energy.
How does a water strider move? - CORRECT ANSWER-their tarsi are packed with
hydrophobic hairs that trap air at the point of contact, helps them not break the
surface tension of the water
What is marangoni propulsion? - CORRECT ANSWER-When the rove beetle falls
into the water, they excrete hydrophobic chemicals that propel them back
towards the shore
How do muscles attach to the cuticle? - CORRECT ANSWER-the apodeme
BRAINSCAPE1
, BRAINSCAPE1
What are apodemes? - CORRECT ANSWER-thickened cuticle ridges, the muscle
attaches to them
What is Reslin? - CORRECT ANSWER-elastic protien like a tendon, allows
flexibility to muscle attachment
where is reslin common? - CORRECT ANSWER-the joints
What is turgidity? - CORRECT ANSWER-The state of being turgid or swollen,
especially due to high fluid content.
what is a hydostatic skeleton? - CORRECT ANSWER-use opposing muscle
contractions to move the soft exoskeleton of larva, contraction and relaxation
allow for the directional movement
On top of muscle contractions, what helps the larva move directionally? -
CORRECT ANSWER-hooks or mouthparts
How many legs do hexapods have - CORRECT ANSWER-three pairs so six
What are the three throacic segments? - CORRECT ANSWER-1. Prothorax
2. Mesothorax
3. Metathorax
What are the six segments of the leg - CORRECT ANSWER-1. COXA
2. TROCHANTER
3. FEMUR
4. TIBIA
5. TARSUS
6. PRETARSUS
What's the f*ck*ss leg segment mnemonic? - CORRECT ANSWER-Cant, Troy,
Fight, Till, Taurus, Passes
What is Tipod gait? - CORRECT ANSWER-For stability during walking three legs
remain on the ground. Particularity in a triangle shape/ front and back on one side
and middle on the other.
What are cursorial legs? - CORRECT ANSWER-Running legs, most basic.Have
well developed femur and tibia, while other parts are slim for weight conservation
What are raptorial legs used for? - CORRECT ANSWER-grasping
What are modifications of raptorial legs? - CORRECT ANSWER-spikes on tibia
and femur
What are fossorial legs used for? - CORRECT ANSWER-digging
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