BIOLOGY
5th Edition
ISBN: 9781264104680
Author: BROOKER
Publisher: MCG
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Chapter 32.2, Problem 2CS
Summary Introduction
To explain: The similarity between wind-dispersed pine seeds and wind-dispersed fruits of the
Introduction: The dispersion is a mechanism of the propagation of the seeds, in far off places by the use of different physical, chemical, and biological agents. Wind is one of the most important agents which help in the dispersal of many fruits. Some plants have accustomed themselves to produce seeds at the time of favorable wind conditions for ensuring the dispersal of their fruits.
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VISUAL SKILLS Which mature seed lacks an endosperm?What happened to it?
Exercise 2:
Construct an indented dichotomous key on the following groups of plants:
Bryophyta
Lower Vasuclar plants
Higher Vascular plants
Gymnosperms
Angiosperms
Pteridophyta
Equisetophyta
ACTIVITY 9: In angiosperms, fruits play an important role in seed dispersal. Plant biologists
recognize different types of fruit, 11 of which are described in the table below. Dried fruits can
be further classified as indehiscent (the fruit/pod does not split open when ripe) or dehiscent
(fruits/pods split open when mature). 51 Examine the provided examples of fruits.
Fruit Type
Description
Example
Category
Simple fruits
Ovary wall and seed coat are fused, one seed;
seed is attached at only one point to the ovary wall
Sunflower
seeds
Achene
Ovary wall is thin and fully fused to the seed at all
points; one seed.
Wheat
orti eno Grain m
Walnut
Ovary wall hard or woody but can be separated
from seed, one seed; may have an outer husk
Dry fruits
Nut
at maturity
Ovary has several cavities in cross-section, several
Cotton
fruit
ng yinea Capsule
Gc to many seeds
g co
Bean pod
Ovary has one cavity that opens along both sides,
many seeds
Legume
Milkweed
Folliclemulq
Ovary has one cavity that…
Chapter 32 Solutions
BIOLOGY
Ch. 32.2 - Core Skill: Connections Look ahead to Figure...Ch. 32.2 - Prob. 1CCCh. 32.2 - Prob. 2CSCh. 32.2 - Prob. 2CCCh. 32.3 - What other trait occurs widely among angiosperms...Ch. 32.3 - What advantage does the nonshowy perianth of grass...Ch. 32.3 - CoreSKILL Designing an experiment requires a plan...Ch. 32.3 - Prob. 2EQCh. 32.4 - Prob. 1CSCh. 32.4 - Prob. 1CC
Ch. 32 - What feature(s) must be present for a plant to...Ch. 32 - Prob. 2TYCh. 32 - Prob. 3TYCh. 32 - What similar features do gymnosperms and...Ch. 32 - Prob. 5TYCh. 32 - Prob. 6TYCh. 32 - Prob. 7TYCh. 32 - Prob. 8TYCh. 32 - Prob. 9TYCh. 32 - Prob. 10TYCh. 32 - Make a diagram that shows how plant biologists...Ch. 32 - Explain why fruits such as apples, strawberries,...Ch. 32 - Core Concept: Structure and Function Compare the...Ch. 32 - Prob. 1COQCh. 32 - How would you go about trying to solve what Darwin...
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