BIOLOGY 324 - EXAM 1 WSU ACTUAL COMPLETE EXAM|WITH ACCURATE QUESTIONS AND VERIFIED ANSWERS|GRADED A

BIOLOGY 324 - EXAM 1 WSU ACTUAL COMPLETE
EXAM|WITH ACCURATE QUESTIONS AND VERIFIED
ANSWERS|GRADED A
modes of locomotion Ans✓✓✓ - Fossorial: digging
- Arboreal: Climbing (grip)
- Scansorial: climbing (claws)
- Saltatorial: Jumping
- Aerial: Flying/gliding
- Cursorial: rapid running


who (animal) uses lateral undulations of the vertebral column?
Ans✓✓✓ amphibians and present day reptiles


what animals use cursorial locomotion Ans✓✓✓ mammals


what are therapsids? Ans✓✓✓ ancestor of mammals


Cursorial adaptations why? Ans✓✓✓ catch and escape of prey, also run
faster and further for resources


Cursorial adaptations Ans✓✓✓ stride length and stride rate


to increase stride length what adaptations occurred Ans✓✓✓ - lengthen
limbs (distal elements lengthen)

, - change in foot posture
- addition of another joint to locomotor mechanism
- increase the distance through which the limbs move while they are off
the ground


stride rate adaptations Ans✓✓✓ - muscle location
- lighten mass of distal limb
-digits reduced
- shorten limb by flexing/increase oscillation rate


Suspension system adaptations Ans✓✓✓ tail to limb and girdle
water to land


dynamic support (different forces) Ans✓✓✓ friction and pressure drag


vertebral column adaptations Ans✓✓✓ - different sections (trunk,
cervical, sacral, thoracic, lumbar)
- expanded cervical region (increased head movement)
- separate lumbar (loss of ribs)


what changed in the spine to better the suspension system (vertebrae
adaptations) Ans✓✓✓ - Direction of neural spine
- Height