Chapter 10: Biodiversity 3- Animals

How many of the animal phyla include single-celled animals?

0

What is the main difference between amphibians and reptiles?

Amphibians are tied to water for reproduction, while reptiles have amniotic eggs that can survive on dry land.

Serial repetition of segments is a defining characteristic of which worm phylum?

Annelids

Which arthropod subgroup includes the spiders?

Arachnids

The first animals evolved from ________.

Colonies of protists

Although exceptions do exist, which is a distinctively amphibian trait? A. Juveniles have gills, adults have lungs. B. Respiration occurs through the skin. C. Skin is smooth with no scales, feathers, or hair. D. All of these are distinctive amphibian traits.

D. All of these are distinctive amphibian traits.

What do sponges and cnidarians have in common? A. Mobility B. Organization of cells into tissues C. Symmetry D. None of the above

D. None of the above

Humans belong to which subgroup of mammals?

Eutherians

All three of the worm phyla are characterized by segmented bodies

False

Which one of the following is a defining characteristic of animals but not of plants?

Heterotrophic

Which arthropod subgroup includes those with six legs?

Insects

Which subgroup of mammals raises their young in pouches?

Marsupials

Some restaurants serve seafood platters that contain oysters, mussels, and clams. Such platters therefore consist of ________.

Mollusks

Which phylum is most closely related to the arthropods?

Round worms

Which of the following phyla is the most diverse and numerous?

The arthropods

Which of the following best describes sponges?

They are asymmetrical, lack tissues, and do not move.

Which of the following best describes mollusks?

They are bilaterally symmetrical and have a soft body sometimes covered with a shell.

Which of the following best describes cnidarians?

They have radial body symmetry, tissues, and stinging cells.

Birds are a type of reptile.

True

Echinoderms use seawater instead of blood in their circulatory systems

True

All vertebrates have ________.

a skull and backbone

This character is found in all arthropods.

an exoskeleton made of chiton

Flatworms are most closely related to the ________.

annelids

The echinoderms are most closely related to the ________.

chordates

All mammals ________.

have mammary glands

Which group of fishes evolved first?

jawless fishes

What do sharks have in common with goldfish?

lateral line system

Sponges are found ________.

mostly in seawater

Gastropods are the most numerous group of mollusks and include the ________.

snails and slugs