CH 30

Which of the following is not a characteristic that distinguishes gymnosperms and angiosperms from other plants?

alternation of generations

Which of the following is a characteristic of all angiosperms?

double internal fertilization

Key features of seed plants facilitating life on land include three of the following four traits. Select the exception.

homospory

Which of the following directly produces the fruit of angiosperms?

ovary

One day, you go outside and see that the cars on the street are covered in a yellow "dust." Which of the following statements can be correctly applied to this "dust"?

The dust is pine pollen and is so abundant because the pines are wind-pollinated.

The advantages of seeds, compared to spores, include ________.

containing a nutrient store for a developing sporophyte

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a _____.

fern gametophyte bearing only antheridia

In addition to seeds, which of the following characteristics is unique to the seed-producing plants?

pollen

Compared to animal-pollinated plants, wind-pollinated angiosperms ________.

produce much more pollen because winds disperse pollen randomly

Which of the following is a major trend in land plant evolution?

the trend toward a sporophyte-dominated life cycle