Squid Anatomy and Physiology Quiz

What is unique about the nervous system of squids compared to humans?

• Squids have no neurons in their arms.

• Squids have a decentralized nervous system with neurons distributed throughout their body.

• Squids have neurons only in their brain.

• Squids have a centralized nervous system.

How long do most squid species typically live?

• About 1 year

• About 10 years

• About 20 years

• About 5 years

What are chromatophores in squids used for?

• To help squids breathe underwater

• To protect squids from predators

• To change color and form patterns for communication

• To help squids swim faster

What is the primary function of the squid's siphon?

• To communicate with other squids

• To help squids see better

• To expel water for movement

• To capture prey

What is the role of the brachial hearts in squids?

• To pump blood to the brain

• To pump blood to the gills

• To pump blood to the tentacles

• To pump blood to the digestive system

Why is squid blood blue?

• Because it contains hemoglobin

• Because it contains hemocyanin

• Because it contains chlorophyll

• Because it contains iron

What is the function of the squid's digestive gland?

• To produce ink

• To store food

• To pump blood

• To release digestive enzymes

What is the purpose of the squid's ink sac?

• To help squids breathe

• To distract predators

• To store nutrients

• To aid in digestion

What is the pen in a squid's body?

• A tool for writing

• A type of fin

• A part of their digestive system

• A remnant of their ancestral shell

How do squids use their retractor muscles?

• To change color

• To move their head

• To capture prey

• To produce ink