EBK CAMPBELL BIOLOGY IN FOCUS
2nd Edition
ISBN: 8220101459299
Author: Reece
Publisher: PEARSON
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Chapter 28, Problem 8TYU
Summary Introduction
To enlist:
Some examples of exaptations in plants.
Concept introduction:
When a trait that already has a function develops (evolves) to serve another purpose, the process is called exaptations. It is a part of evolution. For example: initially the feathers were a source of warmth to the birds, but later it helped in flight.
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Chapter 28 Solutions
EBK CAMPBELL BIOLOGY IN FOCUS
Ch. 28.1 - Prob. 1CCCh. 28.1 - WHAT IF? If humans were photoautotrophs, making...Ch. 28.1 - Prob. 3CCCh. 28.2 - Prob. 1CCCh. 28.2 - Prob. 2CCCh. 28.2 - Prob. 3CCCh. 28.3 - Prob. 1CCCh. 28.3 - Prob. 2CCCh. 28.3 - Prob. 3CCCh. 28.4 - A sign is hammered into a tree 2 m from the trees...
Ch. 28.4 - Would you expect a tropical tree to have distinct...Ch. 28.4 - Prob. 3CCCh. 28 - Most of the growth of a plant body is the result...Ch. 28 - Prob. 2TYUCh. 28 - Heartwood and sapwood consist of A. bark. B....Ch. 28 - Prob. 4TYUCh. 28 - Which of the following would not be seen in a...Ch. 28 - Prob. 6TYUCh. 28 - SCIENTIFIC INQUIRY Grasslands typically do not...Ch. 28 - Prob. 8TYUCh. 28 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 28 - SYNTHESIZE YOUR KNOWLEDGE This stained light...
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- Describe a modified structure and function of the following plant organs: Leaf - Stem - Root -arrow_forwardSome ancestral plants had a difficult transition to land, as challenges to survive caused plant evolution to develop very specialized adaptations over an extended amount of time. These are some of the challenges that plants faced: A. Avoiding desiccation B. Supporting larger bodies (against gravity) C Internally transporting substances D. Keeping gametes wet E. Keeping embryos wet For each of the above challenges. provide a structure/adaptation that plants have developed which mitigates that specific challenge. Must describe a structure or trait for all!arrow_forwardThe section Evolution of Seeds describes the fossil seeds Archaeosperma arnoldii. Its megasporangium was surrounded by a layer of tissue, called an that projected upward, and there was a large , a hole that permitted sperm cells to swim to the egg. If you have studied flowering plant reproduction, how many of these same features occur in flowering plants?arrow_forward
- Explain 2 primary functions of plant leaves. Also provide one example of a modified leaf and explain why the modification has been selected for evolutionarily (what advantage does it provide?)arrow_forwardEVOLUTION LINK Like stems in general, some vines are herbaceous and others are woody. Tropical rain forests have a greater diversity of vines than in any other environment on Earth, and most of these vines are woody. Develop a hypothesis to explain why natural selection has favored the evolution of more species of woody vines (as opposed to herbaceous vines) in tropical rain forests.arrow_forwardWhich of the following is not a characteristic of plants? (a) cuticle (b) unicellular gametangia (c) stomata (d) multicellular embryo (e) alternation of generationsarrow_forward
- The rapid turgor movements of the sensitive plant (Mimosa pudica) are rare in the Plant Kingdom. If all plants evolved such movements, would the phenomenon have possible survival value or other value to the plants? Explain.arrow_forwardDirections: Plants have two life stages. The gametophyte life cycle, wherein a haploid spore is produced, and the sporophyte life cycle wherein there is union of the gametes. Below are different events in the development of flowering plants. Arrange them in the correct order. Place the number from 1 to 6 inside the box. The hypocotyl pushes to the soil along with the cotyledon(s). It starts as a seed which contain the miniature plant called embryo. Of the two sperm cells, one sperm fertilizes the egg cell, forming a diploid zygote; the other sperm fuses with the two polar nuclei, forming a triploid cell that develops into the endosperm Mature plant develops the gametes, releases the pollen and pollinates the flower. It is the process wherein seeds are transported, spread or moved away from the parent plant either by wind, water, animals or insect. The plant, given enough nutrients will develop in a mature stage. AS RICarrow_forwardExplain how a single plant cell can be grown into an individual plant. How plants are different than animals in this aspect and where in plant biotechnology we use plant tissue culturearrow_forward
- EXPERIMENT: INITIATION OF CALLUS AND CELL SUSPENSION IN SELECTED PLANTS Please make a general introduction paragraph about this experiment.arrow_forwardWhich of the following statement is NOT TRUE about plants? Lütfen birini seçin: O a. A plant can grow throughout its life; this is called indeterminate growth O b. Plants are the only organism capable of photosynthesis O c. Fruits in plants protect seeds and aid in seed dispersal O d. The plant body is divided into a root system and a shoot system, connected by vascular tissue that is continuous throughout the plant O e. the transfer of pollen from anther to stigma is called pollinationarrow_forwardDescribe the challenges for plants in terms of resource circulation or dispersal of reproductive structures from an evolutionary perspective (as they moved from single celled to colonial, to small and then large terrestrial forms. Describe the progression of structures from early evolutionary groups to later evolutionary groups to solve one of these challenges in 2-4 paragraphsarrow_forward
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