Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, 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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Imagine that you wanted to know if speciation rate in plant groups is linked to whether the plants are pollinated by bees or hummingbirds. To do this, you identified 20 genera of angiosperms that contained species pollinated by both types of animals. There were substantially more species in the groups that were pollinated by bees. Which of the following conclusions are most consistent with your data?
A.
Hummingbirds promoted speciation less than did bees.
B.
Hummingbirds promoted speciation more than did bees.
C.
Each genus should first be split into two new genera.
D.
The rates of speciation are independent of pollinator type.
Give typing answer with explanation and conclusion
What is an endangered plant species? Why should we care for the endangered plants? If you explore the database there are many native plant species in NJ region listed as endangered species. There are many methods to save the endangered plants. What will be your conservation strategy to save the endangered plants and how can you preserve them in their natural habitat?
You can use plants grown in pots in a growth chamber to investigate many ecological and evolutionary research questions. Identify an interesting ecological or evolutionary research question, then design an experiment to address this question using a plant system. To come up with your research question, think of questions related to topics covered in lecture. The following questions are very general, but might give you some ideas as you develop your own, more specific, question.• Which species in a group of species is the best intraspecific competitor?• Which species in a group of species is the best interspecific competitor? • Is the best intraspecific competitor also the best interspecific competitor?• Does competitive exclusion occur between two species with similar ecological niches?• Does the outcome of interspecific competition change in different environments, or is the best competitor always the best competitor under all environmental conditions?• Similar to the question above –…
Chapter 28 Solutions
Biological Science (6th 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 - 4. What do seeds contain?
a. male gametophyte and...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...Ch. 28 - 12. What structure do moss sperm use for motility,...Ch. 28 - Prob. 13PIATCh. 28 - 14. CAUTION A friend in your biology study group...Ch. 28 - Besides springtails, are there other ways moss...Ch. 28 - 16. Animals are responsible for pollinating many...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Evaluate the following statements about seeds from two biology textbooks: I. The seed coat is an adaptation that protects the plant embryo from damage, water loss, and infection. II. Evolution has come up with a clever solution for protecting plant embryos: seed coats that prevent damage, water loss, and infection. Do these statements accurately represent the evolution of seeds? a) Yes, both statements are accurate. b) No, neither statement is accurate. c) Only the first statement is accurate.arrow_forwardWhich derived characteristic would MOST likely explain the results from the genome analysis? A. appearance of vascular tissue B. appearance of pollen C. appearance of monocots and dicots D. appearance of flowers Comparison of Lignin-Associated Genes Across Photosynthetic Organisms In a study comparing the genomes of photosynthetic organisms, scientists identified genes specific to the synthesis of lignin. The resulting data are presented in the table. Organism Group Approximate number of genes associated with an enzyme unique to lignin biosynthesis Phaeodactylum Diatoms 0 Volvox Green algae 0 A moss Bryophytes 12 Spike moss Lycophytes 38 Rice Monocots 55 Poplar tree Dicots 53arrow_forwardWhat is pollination and how is it important to the environment? Please explain the scientific significance of this process. Cite references.arrow_forward
- In your own words - grasses are flowering plants but many do not have colorful flowers. What mechanism do they use to spread their pollenarrow_forwardDarwin observed an orchid from Madagascar that had a nectar spur of about 30 cm in length. He wondered how it was possible for such a flower to get pollinated if it's nectar was so deep inside the floor. His speculation turned out to be true what was it?arrow_forwardAbout 100 years ago, C. E. Bessey developed the hypothesis of the “ranalean” flower. What are some of the characters of this type of flower? Is the ranalean flower wind pollinated or insect pollinated?arrow_forward
- You have access to the sequence genomes for moss and the lycophyte Selaginella. Your goal in analyzing the data is to write a ground-breaking paper that answers an important question about the evolution of plants. What questions would you try?arrow_forwardInstruction: Propose a hypothesis for the given scenario below. Please answer here directly. Also, support your answer with scientific bases. Female silkworm moths (Bombyx mori) attract males by emitting chemical signals that spread through the air. A male hundreds of meters away can detect these molecules and fly toward their source. The sensory organs responsible for this behavior are the comb like antennae visible in the photograph shown here. Each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. Based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. What predictions does your hypothesis make?arrow_forwardThe stigma is the opening in a flower through which pollen moves to fertilize the eggs . Which characteristic would be most helpful to the stigma in capturing pollen ? ANSWER CHOICES ARE IN THE PHOTO. thanks.arrow_forward
- Which of the following observations would provide the strongest evidence that two plants belong to different biological species? a.The leaves and flowers show morphological differences. b.There are variations in their RNA sequences. c.They produce viable but sterile offspring. d.They occupy unique habitats in an ecosystem.arrow_forwardWhat is the evolutionary trend in the alternation of generation in plants? Further elaborate on the adaptive advantage of the trendarrow_forwardWith named plant species as experts, discuss various organ modifications in plants, clearly stating the benefits such modifications confer in plants that have them?arrow_forward
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