2. Compare and contrast gametogenesis of sperm and eggs in mammals. In your comparison, describe three similarities and three 3. Compare and contrast external versus internal fertilization. Describe at least three major differences. 4. What is meant by 'sperm competition'? What is 'second male advantage'? Describe the case study of Drosophila melanogaster in your text. 5. Describe the difference between oviparous, viviparous, and ovoviviparous. What evolutionary pressures would favor one form over the other? 6. Use your text to identify all the structures in the figures below. Also provide a brief description of each structures function. male reproduction anatomy 7. female reproductive anatomy

2. Compare and contrast gametogenesis of sperm and eggs in mammals. In your comparison, describe three similarities and three 3. Compare and contrast external versus internal fertilization. Describe at least three major differences. 4. What is meant by 'sperm competition'? What is 'second male advantage'? Describe the case study of Drosophila melanogaster in your text. 5. Describe the difference between oviparous, viviparous, and ovoviviparous. What evolutionary pressures would favor one form over the other? 6. Use your text to identify all the structures in the figures below. Also provide a brief description of each structures function. male reproduction anatomy 7. female reproductive anatomy

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Explain further each number 1. Compare and contrast the sequence of fertilization events that take place in the sea urchin vs. mammals. 2. How do the sperm and egg recognize each other? What molecules are involved?
4. In the table below, describe the roles of the extraembryonic membranes. Amnion Allantois Chorion Extraembryonic Membrane Yolk Role
11. A) Why do we generally see animals with eggs and sperm for gametes (i.e., why do we have two sexes)? B) Why is the sex ratio usually 1 to 1 (use an ESS argument in your answer)?
Compare and contrast the similarities and differences of the model organism chicken and drosophila's oogenesis and spermatogenesis
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Please help me answer questions 82 & 84. 82. Asexual reproduction differs from sexual reproduction in that A. asexual reproduction produces genetically diverse offspring. B. asexual reproduction occurs only in plants. C. asexual reproduction utilizes DNA from two parents to code for traits in offspring. D. asexual reproduction only occurs in animals. E. asexual reproduction produces offspring containing DNA from only one parent. -------- 84. The observable properties of genes is an organism's A. gene pool. B. allele frequency. C. genotype. D. phenotype E. macroevolution.
QUESTION 12 Age to sexual maturity in vertebrates... • is different for different species and is designed to maximize successful fertilization. • is not under the control of a gonadotropic hormone. • is not hormonally controlled • is always 10% of maximal lifespan.
* b. Briefly explain how the use of this molecule (CA1P) disrupts both stages of photosynthesis while the Rubisco enzyme is associated with only one stage. Codule 3: The principles of heredity 1. Let's take the example of the gray kangaroo (Macropus fuliginosus) whose ploidy is 8 and the sexual determinism of this species is carried out according to the XY mode. From a male kangaroo: a) Draw the karyotype of this individual, obtained by stopping division at metaphase. Your drawing should include: a. All maternal and paternal chromosomes involved (different colors) b. An example of autosome and heterochromosome c. An example of homologous chromosome, sister chromatid and centromere. d. The total number of chromosomes in a metaphase kangaroo cell. e. A sentence to explain the difference between the terms gene and allele that might apply to this species. Page 3/4 Sh Q + 9 CA 9 0 11:57 M DELL
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