Arthropods Flashcards
1
Q
Which taxonomic group has the greatest biomass on the planet?
A
Plants
2
Q
Characteristic features of arthropod body plan?
A
Jointed appendages Compound eyes Exoskeleton Tagmosis Open circulatory system
3
Q
List 4 reasons why it might be hard for an arthropod to live on land?
A
- Gravity
- Radiation
- Dehydration
- Respiration
- Temperature
- Movement
4
Q
What pre-adaptations did arthropods have to living on land?
A
Hard exoskeleton
Jointed appendages
5
Q
Name 4 arthropod innovations that allow them to live on land?
A
- tracheal system
- book lungs
- malpighian tubules
- spermatophores
6
Q
What is a tracheal system?
A
- Reduces water loss, allows for greater body size/greater activity
- Evolved independently
7
Q
What are book lungs?
A
Only in chlicerates
Reduce water loss
8
Q
What are malpighian tubules?
A
Excretion
Reduce water loss
9
Q
What is a spermatophore?
A
Packet of sperm produced by males and either left lying around or inserted if u catch my drift
