Quiz 4 Flashcards
1
Q
primary respiratory structure in terrestrial insects
A
tracheal system
2
Q
how do earthworms (annelids) exchange gases with their environment
A
through their moist skin
3
Q
what adaptations allow many insects to breathe efficiently in low-oxygen environments
A
tracheal system that allow direct air flow to tissues without reliance on the circulatory system
4
Q
what is the main difference between open and closed circulatory systems in invertebrates
A
- in open circulatory system, hemolymph bathes the organs directly in body cavities
- in closed circulatory system, blood is confined to vessels
5
Q
explain how respiration occurs in sponges
A
sponges rely on diffusion through their porous body walls to exchange gases directly with the surrounding water
6
Q
what is the main respiratory pigment found in many invertebrates, like mollusks and arthropods, and what is its function
A
hemocyanin pigment that transports oxygen
