2nd Edition

ISBN: 9781947172517

Author: Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher: OpenStax

Concept explainers

A group of plant species that utilize spores, instead of flowers or seeds, for reproduction is known as a bryophyte. The non-vascular seedless plants which include mosses, liverworts, and hornworts are classified as bryophytes. There are over 20,000 spec…

Plant Biometry

Biometry is the science that deals with the statistical investigation of biological observations and phenomena. It is very important in the development of sound and effective agricultural research practices. It is a Greek-derived word wherein 'bio' means…

Life Cycle Of Gymnosperms

Gymnosperms, which translates to "naked seeds," are a diverse group of seed plants. The angiosperms are a sister group to one group of gymnosperms (the Gnetales), making the gymnosperms a paraphyletic group, according to the "anthophyte" hypothesis. The …

Life Cycle Of Pteridophytes

They are the first land plants with vascular tissues (xylem and phloem). These vascular plants are classified as vascular cryptogams because they do not contain flowers or seeds. These plants are the most common and visible group of land plants, accounti…

Life Cycle Of Angiosperms

An angiosperm is a word obtained from the two Greek words angio, which refers to "covered," and sperms, which means "bean". Flowering plants are what the angiosperms are called. The flowers of a plant develop into fruits, which contain seeds.

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Textbook Question

Chapter 44, Problem 18CTQ

The extremely low precipitation of subtropical desert biomes might lead one to expect fire to be a major disturbance factor; however, fire is more common in the temperate grassland biome than in the subtropical desert biome. Why is this?

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Chapter 44, Problem 17CTQ

Chapter 44, Problem 19CTQ

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General Patterns Found Across All Biomes Disturbance is important in determining the set of species found in an area. Naturally, broadleaf trees will replace longleaf pine trees, changing the forest from coniferous to deciduous. However, fire removes the broadleaf species, maintaining the coniferous forest. Before agriculture, the southeastern United States was dominated by longleaf pine, but now broadleaf trees are found where the great coniferous forests once grew. From this change in forest species, what do you know has happened to the frequency of fire in the southeastern United States? There are more forest fires in the southern United States now then there were in the past. There are fewer forest fires in the southern United States now then there were in the past.

Desert ecosystems are fragile for which of the following two reasons? Frequent wildfire and flooding Rapid nutrient cycling and frost damage Slow plant growth and low species diversity Overpopulation of predator species and drought Off-road vehicle traffic and deep, organic soils

Draw a typical climate diagram for a tropical rainforest. Label all parts of the diagram and describe all of the types of information an ecologist could glean from such a diagram. Now draw a climate diagram for a desert. How does it differ from your rainforest climatograph, and what does this tell you about how the two biomes differ?

Chapter 44 Solutions

Biology 2e

Ch. 44 - Figure 44.10 How might turnover in tropical lakes...Ch. 44 - Figure 44.12 Which of the following statements...Ch. 44 - Figure 44.21 In which of the following regions...Ch. 44 - Which of the following is a biotic factor? wind...Ch. 44 - The study of nutrient cycling though the...Ch. 44 - Understory plants in a temperate forest have...Ch. 44 - An ecologist hiking up a mountain may notice...Ch. 44 - Which of the following biomes is characterized by...Ch. 44 - Which of the following biomes is characterized by...Ch. 44 - Where would you expect to find the most...

Ch. 44 - A key feature of estuaries is: low light...Ch. 44 - Which of the following is an example of a weather...Ch. 44 - Which of the following natural forces is...Ch. 44 - Ecologists often collaborate with other...Ch. 44 - The population is an important unit in ecology as...Ch. 44 - Compare and contrast ocean upwelling and spring...Ch. 44 - Many endemic species are found in areas that are...Ch. 44 - The extremely low precipitation of subtropical...Ch. 44 - In what ways are the subtropical desert and the...Ch. 44 - Scientists have discovered the bodies of humans...Ch. 44 - Describe the conditions and challenges facing...Ch. 44 - Compare and contrast how natural- and human...Ch. 44 - Predict possible consequences if carbon emissions...

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