Week 16 Quiz

Front 1

Looking back through time, one can see that all organisms are related. At branch points in the animal family tree one can see where mutations gave rise to

Back 1

changes in body plan, biochemistry, and behavior

Front 2

An animal with bilateral symmetry

Back 2

has left and right sides and usually displays cephalization

Front 3

Which statement most accurately describes incomplete metamorphosis?

Back 3

alterations in body plan take place a bit at a time, forming larger and larger nymphs

Front 4

Major trends in the evolution of animals include

Back 4

all of these

Front 5

Which of the following processes are thought to have contributed to adaptive radiation of animals during the Cambrian period?

Back 5

the first predators arose, the supercontinents were breaking up and oxygen levels were rising in the atmosphere

Front 6

The most successful of the invertebrate groups with respect to the numbers of species is

Back 6

Arthropoda

Front 7

_____ are the most diverse animal phylum and _____ are the most diverse animals in this phylum.

Back 7

antropods; insects

Front 8

The vast majority of animals are

Back 8

invertebrates

Front 9

The protist that is most closely related to animals is the

Back 9

choanoflagellate

Front 10

All animals are

Back 10

multicellular and heterotrophic, and lack cell walls