Download PDF by James D. Mauseth: Botany : An Introduction to Plant Biology

By James D. Mauseth

ISBN-10: 0763707465

ISBN-13: 9780763707460

Botany: An creation to Plant Biology presents a radical evaluate of the basics of botany. during the textual content, 3 key rules are under pressure; evolution through traditional choice, exam of botanical phenomenon, and the variety of organisms and their subject. moreover, this article comprises miraculous colour photos to light up key organisms and issues pointed out within the textual content.

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Extra resources for Botany : An Introduction to Plant Biology

Example text

Plants are highly integrated organisms. The structure and metabolism of one part have some impact on all the rest of the plant. When studying the biology of leaves, it is best also to consider how the structure and metabolism of stems, roots, epidermis, and other parts might affect the function of those leaves. Large leaves can absorb more sunlight and energy than can small leaves, but if a plant has large leaves, it may need to have a large root system to absorb water and minerals for the leaves, and it may need wide stems to conduct the water and minerals from the roots to the leaves.

4) are easily recognized as plants. Fungi, such as mushrooms (Fig. 5) and puffballs, were included in the plant kingdom because they are immobile and produce spores, which function somewhat like seeds. But biologists no longer consider fungi to be plants because recent observations show that fungi differ from plants in many basic biochemical respects. Algae are more problematical. One group, the green algae (Fig. 6), are similar to plants in biochemistry and cell structure, but they also have many significant differences.

A further consequence of obtaining energy from sunlight is that the light does not need to be hunted the way that animals must hunt for their food. Because the sun rises every morning, plants can just sit in one spot and spread their leaves (Fig. 15). They do not need eyes, brains, muscles, or digestive systems to locate, catch, and consume their source of energy. Plants can be very simple and survive, whereas most animals must be complex. Finally, no matter where you are, plants are readily available for direct observation.

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Botany : An Introduction to Plant Biology by James D. Mauseth

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