Chapter 7 Marine Animals without a Backbone Review

Sponges belong to which group of animals?

• Vertebrates
• Invertebrates

___________ are tiny hard particles that give a sponge support and can provide protection if they are made out of calcium carbonate or silica glass.

• spongin

• bones

• buds

• spicules

These sponge cells have sticky, funnel-shaped collar to collect food particles and a flagellum that creates a water current

• amoebocyte
• ostiocyte
• pinacocyte
• choanocyte

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

How do sponges obtain food?

• filter it from the water

• grasp it with tentacles

• pry it apart with tube feet

• put it in their mouth with jointed legs

Cnidarians have what kind of symmetry?

• Radial
• Bilateral
• Asymmetrical

This form of cnidaria is known as a __________.

• medusa
• polyp

This form of cnidaria is known as a _______.

• polyp
• medusa

Nematocysts (stinging cells) are used for...

• Defense
• Catch organisms for food
• Both of these

This file-like ribbon of "teeth" is used by molluscs to scrape algae and other food off of rocks and can even drill through the shells of prey.

• Calcium Carbonate

• Radula

• Foot

• Mantle

• Ctenidia

Tags

NGSS.MS-LS4-2

This is the outer fold of skin on molluscs, and is responsible for excreting the substance that forms the mollusc's shell.

• Radula

• Mantle

• Foot

• Ctenidia

• Cockle