Ch 26 Arthropods

Front

What is the main characteristic that distinguishes arthropods from other animal groups?

Back

Arthropods are characterized by their jointed appendages, segmented bodies, and exoskeletons.

Front

What is an exoskeleton?

Back

An exoskeleton is a hard outer structure that provides support and protection to an organism, commonly found in arthropods.

Front

What are the primary functions of an exoskeleton?

Back

The exoskeleton protects soft tissues, prevents water loss, and provides sites for muscle attachment.

Front

What is the significance of jointed appendages in arthropods?

Back

Jointed appendages allow for greater flexibility and mobility, enabling arthropods to perform various functions such as walking, swimming, and grasping.

Front

What are the main body segments of an arthropod?

Back

Arthropods typically have three main body segments: the head, thorax, and abdomen.

Front

How do arthropods grow if they have an exoskeleton?

Back

Arthropods grow by molting, a process where they shed their old exoskeleton and form a new, larger one.

Front

What is the role of tracheal tubes in arthropods?

Back

Tracheal tubes are respiratory structures that allow for gas exchange, delivering oxygen directly to tissues.

Front

What is the difference between arachnids and insects?

Back

Arachnids have eight legs and two body segments (cephalothorax and abdomen), while insects have six legs and three body segments (head, thorax, abdomen).

Front

What is the function of a grasshopper's hind legs?

Back

The hind legs of a grasshopper are primarily used for jumping.

Front

Do all spiders use webs to catch prey?

Back

No, not all spiders use webs; some actively hunt their prey.