Exam 19: Animalia

Tetrapods are so named because they possess four limbs.

Most gardeners are pleased to discover earthworms in their gardens because earthworms improve the soil when they

An animal having radial symmetry,a complete gut,and mesoglea would be a(n)________.

The following figure shows the vertebrates and arthropods as being distantly related,yet each has features,such as limbs and jaws,seen in no other groups.How can such obvious similarities be disregarded in favor of embryological development as a basis for classification?

The vertebrates are grouped into a lineage because all members possess an internal ________.

The success of the amniotic egg was the development of a completely water- and airtight shell that prevented moisture loss.

Mollusks have evolved a variety of defenses; which group is properly matched with its appropriate defensive strategy?

Sponge choanocytes collect food particles,but there is no food distribution system within a sponge; how might surface cells receive nourishment?

In the following diagram of the flatworm,various organs are labeled; which combination of organs forms the flatworm's nervous system?

The presence of what features(s)would exclude the cnidarians and ctenophores as possibilities for the identity of a newly discovered animal?

Ectothermy describes a strategy to homeostatically regulate a body temperature to be below the ambient temperature,thus leading to the phrase cold-blooded.

Features such as a toothed jaw and a bony tail suggest that Archaeopteryx probably did not fly,possibly using its feathers for insulation or gliding instead of flight.

The periodic cicadas have evolved reproductive cycle lengths with prime number patterns; since prime numbers have no common multiples,it's very unlikely that high predator densities will correspond with a hatching event.

Which of the following investigations would be the LEAST likely to provide useful information about the relationships within the kingdom Animalia?

Of the four animals shown in the following pictures,which is believed to be most closely related to humans?

The swim bladder illustrates how an adapted characteristic can be used for a secondary function when environmental pressures change; although first used for buoyancy,it later served as a primitive ________.

Animal body structures and organ systems differentiate predictably from the various layers of the gastrula; which organ system and layer is properly matched?

What feature identifies the animal shown in the following diagram as an insect?

Because of their abundance and the relative scarcity of other types of vertebrates,the ________ era is often called the Age of Reptiles.

The vertebrates,which include organisms such as humans,birds,and frogs,illustrate that very different forms can evolve from one basic body plan.The observation that these diverse organisms share a general body plan supports the hypothesis that