Bio 2 Flashcards
(26 cards)
What is the main feature of the body covered in mollusks?
The body is covered in mucus
This mucus serves various functions, including protection and locomotion.
What type of skeleton do most mollusks have?
Most have an exoskeleton
This exoskeleton can include shells that provide protection.
What is a key characteristic of snails?
Snails have shells for protection
The shell is a crucial adaptation for survival.
What type of body structure do arthropods possess?
Arthropods possess a segmented body
This segmentation allows for specialized functions of body parts.
What class is considered the largest among arthropods?
Insects are the largest class
Insects dominate the arthropod phylum in terms of diversity and number.
How many pairs of legs do arachnids have?
Arachnids have 4 pairs of legs
This is a defining characteristic of arachnids, differentiating them from insects.
Fill in the blank: The body of arthropods is divided into _______.
head, thorax, abdomen
This division is important for the organization and function of their body.
True or False: All mollusks have a backbone.
False
Mollusks are invertebrates and do not possess a backbone.
What is a significant feature of the nervous system in arthropods?
They possess compound eyes
Compound eyes allow for a wide field of vision and better detection of movement.
What are the two main body regions of arthropods?
Cephalothorax and abdomen
This structure helps in the specialization of functions.
What is the primary function of antennae in arthropods?
Sensory perception
Antennae are crucial for detecting environmental signals.
Fill in the blank: The body of arthropods is often divided into _______.
segments
Segmentation allows for greater flexibility and specialization.
What type of jaw do arthropods typically have?
Piercing jaws
These jaws are adapted for feeding on various types of food.
What is the main feature of the body covered in mollusks?
The body is covered in mucus
This mucus serves various functions, including protection and locomotion.
What type of skeleton do most mollusks have?
Most have an exoskeleton
This exoskeleton can include shells that provide protection.
What is a key characteristic of snails?
Snails have shells for protection
The shell is a crucial adaptation for survival.
What type of body structure do arthropods possess?
Arthropods possess a segmented body
This segmentation allows for specialized functions of body parts.
What class is considered the largest among arthropods?
Insects are the largest class
Insects dominate the arthropod phylum in terms of diversity and number.
How many pairs of legs do arachnids have?
Arachnids have 4 pairs of legs
This is a defining characteristic of arachnids, differentiating them from insects.
Fill in the blank: The body of arthropods is divided into _______.
head, thorax, abdomen
This division is important for the organization and function of their body.
True or False: All mollusks have a backbone.
False
Mollusks are invertebrates and do not possess a backbone.
What is a significant feature of the nervous system in arthropods?
They possess compound eyes
Compound eyes allow for a wide field of vision and better detection of movement.
What are the two main body regions of arthropods?
Cephalothorax and abdomen
This structure helps in the specialization of functions.
What is the primary function of antennae in arthropods?
Sensory perception
Antennae are crucial for detecting environmental signals.
