BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 51, Problem 2IQ
Summary Introduction
Todescribe: The reason behind the concept that egg-laying hardly advances from livebearing.
Introduction: The egg-laying organisms lay their eggs and show less or no embryonic development inside the mother. However, livebearer organisms are animals that give birth to young ones. Nearly all members of the Poeciliidae family are livebearer.
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Which of the following is a advantage of asexual reproduction?
a.)Same DNA being passed down-NO GENETIC VARIATION IN THE OFFSPRING
b.)If parent has genetic disease offspring will have it too
c.)Only one parent involved. No searching for mates
d.)Requires more cellular energy
What is the adaptive significance of having sperm and egg produced at different times?
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Chapter 51 Solutions
BIOLOGY
Ch. 51.1 - Prob. 1LOCh. 51.1 - Prob. 2LOCh. 51.1 - Prob. 3LOCh. 51.2 - Prob. 1LOCh. 51.2 - Prob. 2LOCh. 51.3 - Prob. 1LOCh. 51.3 - Prob. 2LOCh. 51.3 - Prob. 3LOCh. 51.4 - Prob. 1LOCh. 51.4 - Explain ovulation and the female reproductive...
Ch. 51.4 - Prob. 3LOCh. 51.5 - Prob. 1LOCh. 51.5 - Describe causes of infertility.Ch. 51 - Prob. 1DACh. 51 - Why might it be adaptive for an individual to be...Ch. 51 - Prob. 2IQCh. 51 - Why do you think the brain is affected when the...Ch. 51 - You have discovered a new organism living in tide...Ch. 51 - Prob. 2UCh. 51 - Prob. 3UCh. 51 - Which of the following structures is the site of...Ch. 51 - FSH and LH are produced by the a. ovaries. b....Ch. 51 - Prob. 6UCh. 51 - Mutations that affect proteins in the acrosome...Ch. 51 - In humans, fertilization occurs in the____, and...Ch. 51 - The testicles of male mammals are suspended in the...Ch. 51 - Prob. 1ACh. 51 - Which of the following is a major difference...Ch. 51 - Prob. 3ACh. 51 - Internal and external fertilization differ in that...Ch. 51 - Prob. 1SCh. 51 - Why do you think that amphibians and many fish...Ch. 51 - How are the functions of FSH and LH similar in...Ch. 51 - Prob. 4SCh. 51 - Why are all parthenogenic parents female?
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- Which of the following characterizesparthenogenesis?(A) An individual may change its sex during itslifetime.(B) Specialized groups of cells grow into newindividuals.(C) An organism is first a male and then a female.(D) An egg develops without being fertilized.arrow_forwardWhy is sexual reproduction useful if only half the animals can produce offspring and two separate cells must be combined to form a third?arrow_forwardHow do we develop from a single fertilized egg cell?arrow_forward
- How does a single fertilized egg (zygote) give rise to the variety of cell types, organs, and systems that look and function differently despite all possessing the same genome?arrow_forwardName the process of development of egg into young one without fertilization?arrow_forwardWhat are advantages of asexual reproduction? Select all that apply. A) In a stable environment, a population that develops from asexual reproduction can grow quickly and thrive. B) In an unstable environment, a population that develops from asexual reproduction can grow quickly and thrive. C) Species that reproduce through asexual reproduction have more genetic diversity. D) Organisms in isolated areas can still reproduce through asexual reproduction.arrow_forward
- What is the difference between embryotic and fetal stage?arrow_forwardWhy does external fertilization lead to an increase of genetic variation?arrow_forwardA)How does a closed circulatory system function differently from an open circulatory system? And identify any benefits to an open circulatory system? B)Identify two differences (either structures or functions) between gills and lungs in terms of how oxygen is captured from the environment. C) Create a table that compares spermatogenesis and oogenesis. Include a bit of information about the hormonal control of reproduction in the comparison.arrow_forward
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Reproduction: Crash Course Zoology #9; Author: CrashCourse;https://www.youtube.com/watch?v=poLyJDVjKlM;License: Standard youtube license