Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 40.1, Problem 1CS
Core Skill: Connections Look back to Figure 32.14 to see a more detailed illustration of the flowering plant life cycle. How can you recognize and where can you find the gametophyte generation of a flowering plant?
Figure 32.14 The life cycle of a flowering plant, illustrated by the genus Polygonum. Flowering plant life cycles differ in length and in the number of cells and nuclei occurring in the female gametophyte, with the seven cells and eight nuclei of Polygonum being common.
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Plants reproduce in a pattern known as alternation of generations. A haploid gametophyte produces gametes through mitosis. The gametes fuse to form a zygote, which then grows into a diploid sporophyte. The sporophyte produces spores through meiosis, which then grow into a gametophyte and start the process over.
Flowers are how angiosperms reproduce. A whorl of sepals (corolla) is at the base of the flower, followed by a whorl of petals (calyx). Inside the flower is a female organ known as a carpel and it is made of a stigma, style, and ovary. The male organ is the stamen and it is made of an anther and filament.
Pollen being transferred to the style is known as pollination. Once the pollen travels down the style and reaches the egg, fertilization happens when sperm meets egg. Then, the fertilized egg and surrounding tissue develops into a seed. A seed is protected by a seed coat and contains endosperm and an embryo. The endosperm grows into a new plant while…
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Chapter 40 Solutions
Biology
Ch. 40.1 - Core Skill: Connections Look back to Figure 32.14...Ch. 40.1 - Prob. 1CCCh. 40.1 - Prob. 2CCCh. 40.2 - What inference can you draw from the observation...Ch. 40.2 - List several ways in which the flowers at the rim...Ch. 40.2 - Why do you think Liang and Mahadevan used Lilium...Ch. 40.2 - How did time-lapse video improve data gathering in...Ch. 40.3 - Prob. 1CCCh. 40.3 - Prob. 2CCCh. 40.3 - Prob. 1CS
Ch. 40.4 - Prob. 1CCCh. 40.4 - Prob. 2CCCh. 40.4 - Prob. 1CSCh. 40 - Where do the pollen grains of flowering plants...Ch. 40 - Prob. 2TYCh. 40 - Where would you find female gametophytes of a...Ch. 40 - How does double fertilization occur in flowering...Ch. 40 - Prob. 5TYCh. 40 - Prob. 6TYCh. 40 - Prob. 7TYCh. 40 - If an ovary contains eight ovules, how many seeds...Ch. 40 - Prob. 9TYCh. 40 - Prob. 10TYCh. 40 - Prob. 1CQCh. 40 - Prob. 2CQCh. 40 - Prob. 3CQCh. 40 - Prob. 1COQCh. 40 - How do plants prevent the production of many...
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