Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Chapter 21, Problem 7RQ
List the adaptations of gymnosperms that have helped them become the dominant trees in dry, cold climates.
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Describe the orders under the gymnosperms (Cycadales, Ginkgoales, Coniferalesn and Gnetales) in terms of plant habit, reproductive type (monoecius/dioecius) leaf type, leaf shape, seed size/shape, special seed characteristics, cone morphology and other distinct features.
Give economic importance of angiosperms.
Know examples of gymnosperm families that have the following characteristics:
fleshy, drupaceous appearing fruits
Genera that are not evergreen
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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- Which of the following is a characteristic of both angiosperms and gymnosperms? production of seeds production of flowers lack vascular tissue production of conesarrow_forwardDescribe the major evolutionary adaptation that allowed gymnosperms to be able to move on to dry land.arrow_forwardExplain the specific morphological, anatomical and reproductive features of cycads that make them more prone (relative to other gymnosperms) to extinction risks from man-made disturbances such as habitat-clearing and poaching.arrow_forward
- Give one significant difference between gymnosperms and angiosperms.arrow_forwardWhat is the natural habitat of gymnosperms?arrow_forwardThere are the two main characteristics specific to members of angiosperm and attributed as the reason for their success and diversity. What are they and explain how each contributes to the success of this group of plantsarrow_forward
- Describe the orders under the Agiosperm uedicots (Fragales, Brasicales, Malvales, Myrtales and Sapindales) in terms of plant habit, reproductive type (monoecius/dioecius), leaf type, leaf shape, floral characteristics, fruit morphology, seed size/shape, and other distinct features.arrow_forwardRelate the structure of an angiosperm leaf to each of the following:- Adaptations for photosynthesis and food storage.- Adaptations for food translocation and water transport.- Specialized adaptations to a desert environment.arrow_forwardDefine the concept of Gymnosperms ?arrow_forward
- In the table below, state concisely how gymnosperms are adapted for living on land with respect to each of the following characters: Characteristics Adaptation for living on land 1.alternation of generation 2.needles 3. seeds 4. pollen 5. vascular tissuesarrow_forwardWhat is the structure and Characteristics of Gymnosperms and its representative plants?arrow_forwardList 10 uses of gymnosperms and provide a specific source for eacharrow_forward
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