Animals are always:

• unicellular

• multicellular

• producers

• prokaryotes

Tags

NGSS.MS-LS1-1

Which of the following animals is sessile and has no tissues?

• Sponge

• Cnidarian

• Worm

• Mollusc

Which of the following animals has brain-like cells in its head?

• Sponge

• Cnidarian

• Worm

• Mollusc

Tags

NGSS.MS-LS4-2

Which of the following animals has bilateral symmetry and complex organ systems?

• Sponge

• Cnidarian

• Worm

• Mollusc

What is the largest animal phylum?

• Mammals

• Birds

• Echidnoderms

• Arthropods

The Arthropods do NOT include:

• Sea stars

• Spiders

• Shrimp

• Bees

What is the oldest living vertebrate?

• Lamprey

• Shark

• Spider

• Ray

An aminal that can be divided into equal parts through its central axis has

• bilateral symmetry

• asymmetry

• radial symmetry

A vertebrate is defined as having a

• brain

• nervous system

• anterior end

• backbone

All arthropods have an external covering called

• gills

• endoskeleton

• exoskeleton

• mantle