Biology

Eric P. Widmaier; Linda E. Graham; Robert J. Brooker

Chapter 30

The Evolution and Diversity of Modern Gymnosperms and Angiosperms - all with Video Answers

Educators

Chapter Questions

Problem 1

What feature must be present for a plant to produce wood?
a. a type of conducting system in which vascular bundles occur in a ring around pith
b. a custele
c. a vascular cambium
d. all of the above
e. none of the above

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 2

Which sequence of critical innovations reflects the order of their appearance in time?
a. embryos, vascular tissue, wood, seeds, flowers
b. vascular tissue, embryos, wood, flowers, seeds
c. vascular tissue, wood, seeds, embryos, flowers
d. wood, seeds, embryos, flowers, vascular tissue seeds, vascular tissue, wood, embryos, flowers

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 3

How long have ancient and modern groups of gymnosperms been important members of plant communities?
a. 10,000 years, since the dawn of agriculture
b. 100.000 years
c. 300,000 years
d. 65 million years, since the Cretaceous-Paleogene (K/T) event
e. 300 million years, since the Coal Age

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 4

What similar features do gymnosperms and angiosperms possess that differ from other modern vascular plants?
a. Gymnosperms and angiosperms both produce flagellate
sperm.
b. Gymnosperms and angiosperms both produce flowers.
c. Gymnosperms and angiosperms both produce tracheids, but not vessels, in their vascular tissues.
d. Gymnosperms and angiosperms both produce fruits.
e. none of the above

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 5

Which part of a flower receives pollen transported by the wind or a pollinating animal?
a. perianth
c. filament
c. ovary
b. stigma
d. pedicel

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 7

Flowers have diversified with regard to
a. color.
b. number of flower parts.
C. fusion of organs.
d. aggregation into inflorescences.
e. all of the above.

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 8

Plants of the genus Fuchsia produce deep pink to red flowers that dangle from plants, produce nectar in floral tubes, and have no scent. Based on these features, which animal is most likely to be a co evolved pollinator of these plants?
a. bee
c. hummingbird
e. moth
b. bat
d. butterfly

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 9

Which type of plant secondary metabolite is best known for the antioxidant properties of human foods such as blueberries, tea, and grape juice?
a. alkaloids
c. carotenoids
e. terpenoids
b. cannabinoids
d. phenolics

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 10

What features of domesticated grain crops might differ from those of wild ancestors?
a. the degree to which ears shatter, allowing for seed dispersal
b. grain size
c. number of grains per ear
d. softness and edibility of grains
e. all of the above

Christina Sorrentino

Christina Sorrentino

Numerade Educator