Bio 121 Campbell Biology Truman College
17th Edition
ISBN: 9781323670637
Author: Urry, Cain
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 38, Problem 3TYU
Double fertilization means that
- (A) flowers must be pollinated twice to yield fruits and seeds.
- (B) every egg must receive two sperm to produce an embryo.
- (C) one sperm is needed to fertilize the egg, and a second sperm is needed to fertilize the polar nuclei.
- (D) every sperm has two nuclei.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What are biofertilizers and mention the significance
PCBs and River Otters: Otters in Washington State’s Green-Duwamish River have high levels of polychlorinated biphenyls (PCBs) in their livers. PCBs can bind to the estrogen receptors in animals and disrupt the endocrine system of these otters. The PCBs seem to increase the estrogen to androgen ratio, skewing the ratio toward too much estrogen.
How would increased estrogen affect the river otter population?
Based on your reading of the materials in this unit, what factors can affect fertility in humans?
Explain how each of the factors affecting human fertility that you described can disrupt the human endocrine system to affect reproduction.
Other than oil and alcohol, are there other liquids you could compare to water (that are liquid at room temperature)?
How is water unique compared to these other liquids?
What follow-up experiment would you like to do, and how would you relate it to your life?
Chapter 38 Solutions
Bio 121 Campbell Biology Truman College
Ch. 38.1 - Distinguish between pollination and fertilization.Ch. 38.1 - Prob. 2CCCh. 38.1 - MAKE CONNECTIONS Does the life cycle of humans...Ch. 38.2 - What are three ways that flowering plants avoid...Ch. 38.2 - Prob. 2CCCh. 38.2 - Prob. 3CCCh. 38.3 - Compare traditional plant-breeding methods with...Ch. 38.3 - Why does Bt maize have less fumonisin than non-GM...Ch. 38.3 - WHAT IF? In a few species, chloroplast genes are...Ch. 38 - What changes occur to the four types of floral...
Ch. 38 - Prob. 38.2CRCh. 38 - Prob. 38.3CRCh. 38 - A fruit is (A) a mature ovary. (B) a mature ovule....Ch. 38 - Prob. 2TYUCh. 38 - Double fertilization means that (A) flowers must...Ch. 38 - Prob. 4TYUCh. 38 - Prob. 5TYUCh. 38 - A small flower with green petals is most likely...Ch. 38 - The black dots that cover strawberries are...Ch. 38 - DRAW IT Draw and label the parts of a flower.Ch. 38 - Prob. 9TYUCh. 38 - Prob. 10TYUCh. 38 - SCIENCE, TECHNOLOGY, AND SOCIETY Humans have...Ch. 38 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 38 - SYNTHESIZE YOUR KNOWLEDGE This colorized SEM shows...
Knowledge Booster
Learn more about
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
- Selection of Traits What adaptations do scavengers have for locating and feeding on prey? What adaptations do predators have for capturing and consuming prey?arrow_forwardCompetition Between Species What natural processes limit populations from growing too large? What are some resources organisms can compete over in their natural habitat?arrow_forwardSpecies Interactions Explain how predators, prey and scavengers interact. Explain whether predators and scavengers are necessary or beneficial for an ecosystem.arrow_forward
- magine that you are conducting research on fruit type and seed dispersal. You submitted a paper to a peer-reviewed journal that addresses the factors that impact fruit type and seed dispersal mechanisms in plants of Central America. The editor of the journal communicates that your paper may be published if you make ‘minor revisions’ to the document. Describe two characteristics that you would expect in seeds that are dispersed by the wind. Contrast this with what you would expect for seeds that are gathered, buried or eaten by animals, and explain why they are different. (Editor’s note: Providing this information in your discussion will help readers to consider the significance of the research).arrow_forwardWhat is the difference between Uniporters, Symporters and Antiporters? Which of these are examples of active transport?arrow_forwardWhat are coupled transporters?arrow_forward
- How do histamine and prostaglandins help in the mobilization of leukocytes to an injury site? What are chemotactic factors? How do they affect inflammation process?arrow_forwardCompare and contrast neutrophils and macrophages. Describe two ways they are different and two ways they are similar.arrow_forwardDescribe the effects of three cytokines (not involved in the initial inflammation response). What cells release them?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Reproduction: Crash Course Zoology #9; Author: CrashCourse;https://www.youtube.com/watch?v=poLyJDVjKlM;License: Standard youtube license