Asked by Barry Bonilla on Apr 26, 2024
Verified
Which annelid subgroup has many chitin-reinforced bristles called chaetae on their segments?
A) polychaetes
B) oligochaetes
C) leeches
D) earthworms
E) tapeworms
Polychaetes
A class of annelid worms, known for their bristled segments which are predominantly marine.
Chaetae
Bristle-like structures made of chitin found on the bodies of annelid worms, such as earthworms, contributing to their locomotion.
Oligochaetes
A group of segmented worms, including earthworms, characterized by having a relatively small number of chaetae (bristles) compared to other polychaetes.
- Gain understanding of the primary anatomical configurations of key animal phyla and their developmental pathways.
- Acquire insight into the organization and roles of specialized organs and systems in animal biology.
Verified Answer
CK
Ceren KaptanMay 01, 2024
Final Answer :
A
Explanation :
Polychaetes are known for their many chitin-reinforced bristles called chaetae on their segments, which are used for locomotion and defense. Oligochaetes, earthworms, and leeches have fewer chaetae or none at all. Tapeworms are not annelids and do not have chaetae.
Learning Objectives
- Gain understanding of the primary anatomical configurations of key animal phyla and their developmental pathways.
- Acquire insight into the organization and roles of specialized organs and systems in animal biology.