Article About Octopuses

What class of animals do octopuses belong to?

• Crustacea

• Gastropoda

• Cephalopoda

• Molluscoidea

Which of the following is NOT true about octopus anatomy?

• They have three hearts.

• They have a hard internal skeleton.

• They have a hard internal skeleton.

• Their blood contains hemocyanin.

Why is an octopus able to squeeze through very small openings?

• Because it can deflate its lungs.

• Because it has strong suction power.

• Because its body is soft except for its beak.

• Because its arms can become rigid.

What allows an octopus to change the color and texture of its skin?

• Nerve endings

• Hemocyanin

• Chromatophores

• Glandular cells

Which word best describes the way octopuses can imitate dangerous creatures?

• Mutation

• Mimicry

• Camouflage

• Transformation

What makes octopus intelligence particularly unusual in the animal kingdom?

• They learn from genetic memory.

• Their intelligence depends on vocal communication.

• Most of their neurons are in their arms.

• They mimic human brain structure.

What happened to Inky the octopus?

• He was eaten by a predator during an experiment.

• He learned to use tools in a lab.

• He escaped from an aquarium by finding and crawling through a drain.

• He performed tricks for tourists.

Why do octopuses have blue blood?

• Because of oxygen saturation

• Because of hemocyanin, a copper-based molecule

• Due to high pressure in deep waters

• To blend in with the sea

Which of the following behaviors shows octopus intelligence?

• Camouflage

• Ink ejection

• Puzzle-solving

• Color-changing skin

What is “distributed cognition” in relation to octopuses?

• Intelligence shared among groups of octopuses

• The ability to transfer thoughts through water

• A brain structure where intelligence is spread throughout the body

• The pattern of group migration