Quiz 5 Flashcards
1
Q
how do sponges and cnidarians handle excretion and osmoregulation without specialized excretory organs
A
rely on diffusion across bosy surfaces to remove waste and regulate water balance
2
Q
- produce metabolic wate with low solubility and ability to be excreted as a paste in order to conserve water
- e.g. terrestrial arthorpods
A
uricotelic
3
Q
- excrete waste product in form of guanine
- e.g. arachnids like scorpions and spiders
A
guanotelic
4
Q
- excrete ammonia
- common in aquatic invertebrates due to easy diffusion into water
A
ammonotelic
5
Q
- excrete less toxic form of nitrogenous waste due to limited water
- e.g. are some invertebrates that live in environments with limited water
A
ureotelic
6
Q
It refers to the tubular, excretory structures in specific invertebrates, generally closing internally in the flame cells and possessing an external pore.
A
protonephridia
7
Q
- more complex excretory organs found in higher invertebrates
- have opening into the coelomic cavity
A
metanephridia
8
Q
inverts with protonephridia
A
platyhelminthes
9
Q
inverts with metanephridia
A
annelids
