Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 19, Problem 19WIO
Summary Introduction
To determine:
Some threatened and endangered species in an area and also determine the most important threats to those species. Determine the potential consequences of plant species extinction and the steps that are taken to save threatened and endangered species.
Concept introduction:
The plant species which are in danger of extinction are known as endangered species. The extinct species is considered to be threatened.
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Chapter 19 Solutions
Biology: Concepts and Investigations
Ch. 19.1 - Prob. 1MCCh. 19.1 - Prob. 2MCCh. 19.1 - How does vascular tissue adapt plants to land?Ch. 19.1 - Describe the reproductive adaptations of plants.Ch. 19.2 - Describe the three main groups of bryophytes.Ch. 19.2 - Prob. 2MCCh. 19.3 - Describe the four groups of seedless vascular...Ch. 19.3 - Prob. 2MCCh. 19.3 - Prob. 3MCCh. 19.4 - What are the characteristics of gymnosperms?
Ch. 19.4 - What are the four groups of gymnosperms?Ch. 19.4 - Prob. 3MCCh. 19.4 - What happens during and after pollination in...Ch. 19.5 - Prob. 1MCCh. 19.5 - Prob. 2MCCh. 19.5 - Prob. 3MCCh. 19.5 - Prob. 4MCCh. 19.6 - Prob. 1MCCh. 19.6 - What are some alternative hypotheses for why the...Ch. 19 - Which of the following is NOT a similarity between...Ch. 19 - Prob. 2MCQCh. 19 - What conditions did plants face when they moved to...Ch. 19 - Prob. 4MCQCh. 19 - Prob. 5MCQCh. 19 - Which adaptation to land is present in the most...Ch. 19 - Prob. 7MCQCh. 19 - Reproduction in a pine tree is associated with a....Ch. 19 - In comparing the life cycle of an angiosperm to...Ch. 19 - What plant group is correctly matched with an...Ch. 19 - What characteristics do all land plants have in...Ch. 19 - Prob. 2WIOCh. 19 - How are terrestrial habitats different from...Ch. 19 - Prob. 4WIOCh. 19 - List the characteristics that distinguish the four...Ch. 19 - Prob. 6WIOCh. 19 - A fern plant can produce as many as 50 million...Ch. 19 - How do the adaptations of gymnosperms and...Ch. 19 - Prob. 9WIOCh. 19 - Describe how the petals, ovary, and ovule of...Ch. 19 - The immature fruit of the opium poppy produces...Ch. 19 - Scientists have studied plant populations that...Ch. 19 - Prob. 13WIOCh. 19 - Prob. 14WIOCh. 19 - Prob. 15WIOCh. 19 - Compare and contrast the life cycles of the four...Ch. 19 - Prob. 17WIOCh. 19 - Prob. 18WIOCh. 19 - Prob. 19WIOCh. 19 - What are the pros and cons of pursuing biofuels as...Ch. 19 - Prob. 1PITCh. 19 - Prob. 2PITCh. 19 - Prob. 3PITCh. 19 - Prob. 4PIT
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