Squid Dissection Flashcards

Questions and Answers

How many arms and tentacles does the squid have?

8 arms and 2 tentacles

What do the arms and tentacles do?

Arms aid in feeding and grasping an object near the mouth. Tentacles are used to grab and capture prey.

What is the function of the water jet?

Helps the squid escape from danger.

What are two external features that are adaptations for squids' predatory life?

Small hooks and rings of teeth around their suckers; long tentacles that help squid grab food and capture predators. Signup and view all the answers

What are traits squids share with other mollusks?

Soft body, visceral mass, foot, and mantle. Signup and view all the answers

How many gills does the squid have?

Two. Signup and view all the answers

Where does the ink sac empty into?

Empties into the water jet. Signup and view all the answers

What is the function of the ink sac?

To confuse its predators by releasing a dark fluid to cloud the water. Signup and view all the answers

What is the function of the pen?

The pen is what is left of the shell and gives the squid support of body structure. Signup and view all the answers

How do wastes exit the squid?

Wastes exit through the anus, and are washed by water through the jets. Signup and view all the answers

Study Notes

Squid Anatomy and Functionality

Squids possess 8 arms and 2 tentacles, crucial for feeding and prey capture.
Arms assist in grasping objects near the mouth, while tentacles are specialized for capturing prey.

Escape Mechanism

The water jet serves as a defense mechanism, allowing squids to swiftly escape threats.

Adaptations for Predation

Squids are equipped with small hooks and rings of teeth on their suckers to enhance their predatory abilities.
Long tentacles facilitate the capture of food and defense against predators.

Shared Traits with Mollusks

Common characteristics with other mollusks include a soft body, visceral mass, foot, and mantle.

Respiratory System

Squids have two gills that enable respiration in aquatic environments.

Ink Sac Functionality

The ink sac empties into the water jet, providing a means of releasing ink.
This dark fluid serves to confuse predators, creating a smokescreen in the water.

Support Structure

Squids lack an external shell; the pen, a remnant of a shell, provides structural support to the body.

Waste Excretion

Squids have a complete digestive system; waste is expelled through the anus and cleared by water propulsion from the jets.

Description

This quiz consists of flashcards designed to help you learn about squid anatomy and physiology. Each card covers a specific aspect, including the number of arms and tentacles, the functions of these appendages, and unique features of squids. Perfect for biology students or anyone interested in marine life!