Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Textbook Question
Chapter 21, Problem 4FTB
Three groups of nonvascular plants are _______, ______, and _______. Three groups of seedless vascular plants are ____ ____, _______. And _______. Today, the most diverse group of plants is the _______.
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Chapter 21 Solutions
Biology: Life on Earth
Ch. 21 - 1. Scientists hypothesize that the ancestors of...Ch. 21 - Plant adaptations to life on land include a(n)...Ch. 21 - 3. Seedless vascular plants must reproduce when...Ch. 21 - 4. Three groups of nonvascular plants are _______,...Ch. 21 - 1. What is meant by “alternation of generations”?...Ch. 21 - 2. Explain the evolutionary changes in plant...Ch. 21 - Describe evolutionary trends in the life cycles of...Ch. 21 - Prob. 4RQCh. 21 - List the structural adaptations necessary for the...Ch. 21 - The number of species of flowering plants is...
Ch. 21 - List the adaptations of gymnosperms that have...Ch. 21 - What is a pollen grain? What role has it played in...Ch. 21 - The majority of all plants are seed plants. What...Ch. 21 - You are a geneticist working for a firm that...Ch. 21 - 1. Prior to the development of synthetic drugs,...Ch. 21 - 2. Only a few hundred of the more than 200,000...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Figure 25.6 Which of the following statements about plant divisions is false? Lycophytes and pterophytes are seedless vascular plants. All vascular plants produce seeds. All non-vascular embryophytes are bryophytes. Seed plants include angiosperms and gym nosperms.arrow_forwardClub mosses, horsetails, and ferns are ___ plants. a. multicelled aquatic b. nonvascular seed c. seedless vascular d. seed-bearing vasculararrow_forwardClub mosses, horsetails, and ferns are ___ plants. a. multicelled aquatic b. nonvascular seed c. seedless vascular d. seed-bearing vasculararrow_forward
- Which is the most diverse group of seedless vascular plants? a. the liverworts b. the horsetails c. the club mosses d. the fernsarrow_forwardWhich of the following is not a characteristic of plants? (a) cuticle (b) unicellular gametangia (c) stomata (d) multicellular embryo (e) alternation of generationsarrow_forwardNow you will practice identifying the phylogenetic tree that corresponds to a given character table. The following table shows three key events in the evolution of plants: the development of vascular tissue, the development of flowers, and the development of seeds. Plant groups Vascular Tissue Flowers Seeds Gymnosperms 1 0 1 Mosses 0 0 0 Ferns 1 0 0 Angiosperms 1 1 1 Select the phylogenetic tree that correctly represents the data in the character table.arrow_forward
- Read the scenario. A botanist (a biologist who specializes in plant biology) is researching the enormous biodiversity of plants found in the tropical rainforest. As she hikes through the forest, she finds a section of forest that contains several types of flowering plants that are unidentified, meaning they have yet to be named and classified into a scientific group. She observes several different examples of this plant over several acres of forest and notes that the leaves and stems of these plants look very similar. The only part of the plant that varies is the flower. She notes that on the southern side of the forest, the flowers are bright pink and have 18 petals per flower. On the northern side of the forest, the flowers are white and have nine petals per flower. The botanist wants to determine if the plants she has discovered are of the same species or different species. How would she be able to determine this? a If they are two different species, she could grow them…arrow_forwardWhich of the following statements is NOT true? Answers Bryophytes and ferns have the same type of life cycle Bryophytes were the first land plants In ferns, the dominant generation is the diploid stage organism The adaptation of seeds allowed plants to sexually reproduce on land without the need for water All of the above are true Please explain which one is correct.arrow_forwardThis figure identifies lineages as plants, non-vascular plants, vascular plants, seedless vascular plants, and seed plants. Which of these categories are paraphyletic and which are monophyletic?arrow_forward
- Which of the following statements about ferns is not true? (a) ferns have motile sperm cells that swim through water to the egg-containing archegonium (b) ferns are vascular plants (c) ferns are the most economically important group of bryophytes (d) the fern sporophyte consists of a rhizome, roots, and fronds (e) the diversity of ferns is greatest in the tropicsarrow_forwardWhat key traits distinguish each group from the other listed in the comparison? A) All land plants from green algae? B) Pteridophyta (ferns) from Bryophyta (mosses)? C) Angiosperms from ferns?arrow_forwardWhat is the characteristic that distinguishes bryophytes from the other plant phyla? Answers: They do not have embryos. They do not have vascular tissue. They have flowers. They have fruits. They have lignin in their cell walls. Please explain which answer is the correct one.arrow_forward
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