The ancestors of many modern animal phyla first appeared during the:

• Burgess period

• Precambrian period

• Cambrian period

• Edicarian period

Most chordates that live on land have:

• two limbs

• four limbs

• six limbs

• eight limbs

The evolution of jaws and paired fins was an important development during the rise of:

• tunicates

• lancelets

• fishes

• amphibians

Tags

NGSS.MS-LS4-2

Which two body plan characteristics are shared by arthropods and vertebrates?

• cephalization

• segmentation

• radial symmetry

• two germ layers

What body plan features did Cambrian animals evolve that made them more likely to become fossils?

• limbs

• segmentation

• hard body parts

• cephalization

Which of these invertebrate animals is in the phylum Porifera?

• jellyfish

• coral

• squid

• sponges

Which of these animals is in the phylum cnidaria, and have nematocysts that contain poison? Select all that apply.

• hydra

• jellyfish

• coral

• barnacles

What type of fish was well on the road to land-dwelling tetrapods?

• sharks and rays

• ray-finned fish

• lobe-finned fish

• hagfish

Tags

NGSS.MS-LS4-2

What type of mammal are we?

• monotreme

• placental

• marsupial

Birds and mammals share which of these characteristics?

• feathers

• endothermic (warm-blooded)

• three-chambered heart

Tags

NGSS.MS-LS4-2