Skip to main content
Ch. 30 - Plant Diversity II: The Evolution of Seed Plants
Campbell - Campbell Biology 12th Edition
Urry12th EditionCampbell BiologyISBN: 9785794169850Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoUrry 12th EditionCh. 30 - Plant Diversity II: The Evolution of Seed PlantsProblema 4
Capitolo 30, Problema 4

Which of the following is a characteristic that distinguishes gymnosperms and angiosperms from other plants?
a. Alternation of generations
b. Independent gametophytes
c. Vascular tissue
d. Ovules

Guida verificata passo dopo passo
1
Understand the key characteristics of gymnosperms and angiosperms. Both are seed-producing plants, which is a major distinguishing feature.
Recognize that alternation of generations is a common feature in all plants, including non-seed plants like mosses and ferns, so it does not distinguish gymnosperms and angiosperms.
Independent gametophytes are found in non-seed plants like mosses and ferns, where the gametophyte is a separate, free-living organism. In seed plants, the gametophyte is dependent on the sporophyte.
Vascular tissue is present in both seed and non-seed plants, including ferns and club mosses, so it is not unique to gymnosperms and angiosperms.
Ovules are a characteristic feature of seed plants, including gymnosperms and angiosperms. They develop into seeds after fertilization, distinguishing these groups from non-seed plants.

Risposta video verificata per un problema simile:

Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
1m

Concetti chiave

Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.

Alternation of Generations

Alternation of generations is a life cycle found in plants where there is a regular alternation between two distinct forms: the haploid gametophyte and the diploid sporophyte. This cycle is common in all plants, including gymnosperms and angiosperms, but does not distinguish them from other plant groups.
Video consigliato:
04:09
Laminaria Life Cycle: Alternation of Generations

Vascular Tissue

Vascular tissue consists of xylem and phloem, which are responsible for transporting water, nutrients, and food throughout the plant. While vascular tissue is a characteristic of gymnosperms and angiosperms, it is also present in other plant groups like ferns, making it not unique to these two groups.
Video consigliato:
06:58
Vascular Tissue

Ovules

Ovules are structures within seed plants where the female gametophytes develop and, after fertilization, become seeds. This characteristic is unique to gymnosperms and angiosperms, distinguishing them from non-seed plants like ferns and mosses, which do not produce seeds.
Video consigliato:
06:26
Seed Plants - 1
Pratica correlata
Domanda del libro di testo

Use the letters a–d to label where on the phylogenetic tree each of the following derived characters appears.

a. Flowers

b. Embryos

c. Seeds

d. Vascular tissue

1178
views
Domanda del libro di testo

Which of the following are present in angiosperms but not in gymnosperms?


A. seeds

B. pollen

C. ovaries

D. ovules


268
views
Domanda del libro di testo

Where in an angiosperm would you find a megasporangium?

a. In the style of a flower

b. Enclosed in the stigma of a flower

c. Within an ovule contained within an ovary of a flower

d. Packed into pollen sacs within the anthers found on a stamen

1353
views
Domanda del libro di testo

Which of the following is a key feature of seed plants facilitating life on land?

a. Homospory

b. Pollen

c. Reduced sporophytes

d. Spores

1231
views
Domanda del libro di testo

The history of life has been punctuated by several mass extinctions. For example, the impact of a meteorite may have wiped out most of the dinosaurs and many forms of marine life at the end of the Cretaceous period. Fossils indicate that plants were less severely affected by this mass extinction. What adaptations may have enabled plants to withstand this disaster better than animals?

1076
views