Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 28, Problem 10TYPSS
PROCESS OF SCIENCE You have been hired as a field assistant for a researcher interested in the evolution of flower characteristics in orchids. Design an experiment to determine whether color, size, shape, scent, or amount of nectar is the most important factor in attracting pollinators to a particular species. Assume that you can change any flower's color with a dye and that you can remove petals or nectar stores, add particular scents, add nectar by injection, or switch parts among species by cutting and gluing.
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The drooping, bell-like flower Aquilegia canadensis is adapted for cross-pollination. However, if the plant has not been pollinated previously, self-pollination can occur. However, if cross pollination occurs after self-pollination takes place, the pollen from cross pollination reaches the style before the pollen from self-pollination. Using course concepts and vocabulary 1) Provide a reasoning for this phenomenon. 2) Would this adaptation for reproduction be beneficial for the plant?
Using scientific concepts and terms describe how the Bucket Orchid can temporarily “hold” onto the bee’s body while it glues the pollen sacs to the bees back. In other words, what type of plant “movement” (aka. response) would this most likely be described as? Please watch the YouTube link to answer the question.
An Orchid’s Trap
https://youtu.be/_uHJGdTgtXE
Many plants mimic other plants or other animals in order to attract pollinators.
a) Describe one example of plants mimicking either other plants or other animals in order to attract pollinators.
b) Why might these “cheating” strategies have evolved rather than developing “truthful” signals to attract a pollinator?
Chapter 28 Solutions
Biological Science (7th Edition)
Ch. 28 - What important role does lignin play in vascular...Ch. 28 - Prob. 2TYKCh. 28 - What is a pollen grain? a. male gametophyte b....Ch. 28 - 5. What does it mean to say that a life cycle is...Ch. 28 - 6. SOCIETY Soils, water, and the atmosphere are...Ch. 28 - Prob. 7TYUCh. 28 - Explain the difference between homosporous and...Ch. 28 - Angiosperms such as grasses, oaks, and maples are...Ch. 28 - PROCESS OF SCIENCE You have been hired as a field...Ch. 28 - Is long-distance sex possible in mosses?
Moss...
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