All of the following characteristics are true for chordates, except _ (blank)a. postanal tail

1.  _.

Select one:

b. dorsal tubular nerve cord

c. pharyngeal pouches

d. vertebral column

e. notochord

2. _ (blank) _ occurs when different courtship patterns lead to reproductive isolation.

Select one:

a. habitat isolation

b. mechanical isolation

c. gamete isolation

d. behavioral isolation

e. temporal isolation

3. What is the result of breeding two closely related species?

Select one:

a. an alloploid

b. a polyploid

c. a hybrid

d. an autoploid

e. a sub-species

4. What occurs when two different yet related species of plants hybridize?

Select one:

a. symploidy

b. gametoploidy

c. autoploidy

d. alloploidy

e. zygoploidy

5. What type of symmetry is seen in animals with definite right and left halves?

Select one:

a. radial symmetry

b. spherical symmetry

c. bilateral symmetry

d. trilateral symmetry

e. asymmetry

6. During which geologic period was the majority of today's coal produced?

Select one:

a. Devonian

b. Cretaceous

c. Jurassic

d. Silurian

e. Carboniferous

7. If mules are fertile but their offspring are infertile, this is an example of reproductive isolation due to _ (blank) _.

Select one:

a. F2 fitness

b. hybrid sterility

c. zygote mortality

d. mechanical isolation

e. temporal isolation

8. What characteristic is shared by most different types of plants?

Select one:

a. embryo protection

b. seeds

c. vascular tissue

d. flowers

e. cones