Asked by
Ruthie Riley
on Oct 09, 2024
Verified
Most aquatic invertebrates that have a circulatory system use internal or external ____.
A) tracheal tubes
B) spiracles
C) lungs
D) gills
E) body walls for direct diffusion
Circulatory System
Organ system consisting of a heart or hearts and vessels that distribute circulatory fluid through a body.
Tracheal Tubes
A system of air-filled tubes in insects and some other arthropods that allow for gas exchange directly with body cells.
Spiracles
Small openings found on the surface of some animals, such as insects and spiders, that lead to their respiratory systems.
- Understand the various mechanisms of gas exchange in different organisms.
- Identify the structures and functions related to the respiratory systems of mammals, birds, and aquatic animals.
Verified Answer
BG
Learning Objectives
- Understand the various mechanisms of gas exchange in different organisms.
- Identify the structures and functions related to the respiratory systems of mammals, birds, and aquatic animals.