Bio 1500 - exam 1
1. dragonflies as formidable aerial and aquatic predators: aerial: adults catch flying insects
mid flight; aquatic: larvae are fearsome predators
2. describe the life changes of dragonflies: - live for 3+ years in the water (aquatic larvae)
- larvae have labium with claws at the end of it
- exoskeleton cracks and dragonfly emerges
3. identify dragonflies as ancient insects (when, what, why): - known as Meganeura (as
fossils)
- first fossils date to 325 mya
- among the first insects to fly
- exhibit a "primitive" wing morphology
- 3 ft wingspan; 150g
4. identify the outstanding characteristic of animals (including dragonflies) in
the carboniferous: huge body size
5. compare dragonfly size from ancient times to today: - ancient: 3ft wingspan; 150g
- today: <6in wingspan; 1g
1/4
, 6. develop more than one hypothesis for why dragonflies were so big: - O2 levels
- environment
- predators/prey
- carbon levels
7. Identify the most important and least important attribute for employers and
medical schools:
a) team-working skills
b) content knowledge
c) communication skills
d) learning skills: most important: team-working skills
least important: communication skills
8. recognize how the relatively small contribution of each individual test will
contribute to your final class grade: tests are 35% as a whole; each test equals 5% of the final grade
2/4
1. dragonflies as formidable aerial and aquatic predators: aerial: adults catch flying insects
mid flight; aquatic: larvae are fearsome predators
2. describe the life changes of dragonflies: - live for 3+ years in the water (aquatic larvae)
- larvae have labium with claws at the end of it
- exoskeleton cracks and dragonfly emerges
3. identify dragonflies as ancient insects (when, what, why): - known as Meganeura (as
fossils)
- first fossils date to 325 mya
- among the first insects to fly
- exhibit a "primitive" wing morphology
- 3 ft wingspan; 150g
4. identify the outstanding characteristic of animals (including dragonflies) in
the carboniferous: huge body size
5. compare dragonfly size from ancient times to today: - ancient: 3ft wingspan; 150g
- today: <6in wingspan; 1g
1/4
, 6. develop more than one hypothesis for why dragonflies were so big: - O2 levels
- environment
- predators/prey
- carbon levels
7. Identify the most important and least important attribute for employers and
medical schools:
a) team-working skills
b) content knowledge
c) communication skills
d) learning skills: most important: team-working skills
least important: communication skills
8. recognize how the relatively small contribution of each individual test will
contribute to your final class grade: tests are 35% as a whole; each test equals 5% of the final grade
2/4
