EBK CAMPBELL BIOLOGY
11th Edition
ISBN: 8220103613828
Author: Reece
Publisher: PEARSON
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Textbook Question
Chapter 46, Problem 11TYU
SCIENTIFIC INQUIRY You discover a new egg-laying worm speties. You dlssect four adults and find both oocytes and sperm in each. Cells outside the gonad contain five chromosome pairs. Lacking genetie variants, explain how you would determine whether the worms can self-feriilize.
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1: Make a diagram of the life cycle of a diagenetic fluke worm (Class Trematoda).
2: Highlight the stage(s) of life cycle that reproduce sexually and which are capable of asexual reproduction.
3: Explain the advantages of having a life cycle with both sexual and asexual phases.
Fertilized egg
What structure tells you what stage this is?
Blastocoel
O Visible nucleus
O Archenteron
Blastopore
O Fertilization envelope
Which of the following follows fertilization in Xenopus embryos?
Calcium waves cause non-yolky cytoplasm to squeeze into animal pole
Meiosis II completes
Occurs before albumen and shell are secreted to cover the egg
Cortical rotation
Centrally located yolk confines cleavage to cytoplasmic rim of egg
Chapter 46 Solutions
EBK CAMPBELL BIOLOGY
Ch. 46.1 - Compare and contrast the outcomes of asexual and...Ch. 46.1 - Parthenogenesis is the most common form of asexual...Ch. 46.1 - WHAT IF? If a hermaphrodite self-fertilizes, will...Ch. 46.1 - Prob. 4CCCh. 46.2 - How does internal fertilization facilitate life on...Ch. 46.2 - What mechanisms have evolved in animals with (a)...Ch. 46.2 - MAKE CONNECTIONS What are the shared and distinct...Ch. 46.3 - Why might frequent use of a hot tub make it harder...Ch. 46.3 - Prob. 2CCCh. 46.3 - WHAT IF? If each vas deferens in a male was...
Ch. 46.4 - How are the functions of FSH and LH in females and...Ch. 46.4 - How does an estrous cycle differ from a menstrual...Ch. 46.4 - WHAT IF? If a human female begins taking...Ch. 46.4 - Prob. 4CCCh. 46.5 - Prob. 1CCCh. 46.5 - In what ways are tubal ligation and vasectomy...Ch. 46.5 - Prob. 3CCCh. 46 - Would a pair of haploid offspring produced by...Ch. 46 - Identify which of the following, if any, are...Ch. 46 - How does the difference in size and cellular...Ch. 46 - Prob. 46.4CRCh. 46 - Prob. 46.5CRCh. 46 - Prob. 1TYUCh. 46 - In male mammals, excretory and reproductive...Ch. 46 - Prob. 3TYUCh. 46 - Prob. 4TYUCh. 46 - Prob. 5TYUCh. 46 - Prob. 6TYUCh. 46 - Prob. 7TYUCh. 46 - Prob. 8TYUCh. 46 - DRAW IT In human spermatogenesis, mitosis of a...Ch. 46 - Prob. 10TYUCh. 46 - SCIENTIFIC INQUIRY You discover a new egg-laying...Ch. 46 - WRITE ABOUT A THEME: ENERGY AND MATTER In a short...Ch. 46 - SYNTHESIZE YOUR KNOWLEDGE A female Komodo dragon...
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- Meiosis ________. a. occurs only in germ cells of animals b. supports growth and tissue repair in multicelled species c. gives rise to genetic diversity among offspring d. is part of the life cycle of all cells.arrow_forwardBriefly compare and contrasts the advantage of asexual and sexual reproduction. Which one is most common in animals?arrow_forwardIn questions 13 and 14, decide whether each is an example of sexual or asexual reproduction, and state why. 13. A diploid queen honeybee produces haploid eggs by meiosis. Some of these eggs are never fertilized and develop into haploid male honeybees (drones).arrow_forward
- Mind map about asexual and sexual reproduction of animalsarrow_forwardMatch each hypothesis to its theory. Preformationism Genetic information is inherited from one parent or the other, not both. Pangenesis concept Reproductive cells have complete genetic codes for their species. Germ-plasm theory Cells in different tissues have unique genetic codes that are transferred to the gonads to produce gametes.arrow_forwardExplain well which option is correct, whyarrow_forward
- 8. The major event in the embryonic development of animals that results in a layered embryo is called Group of answer choices choanoflagellation transmogrification ecdysis compartmentalization desagellation gastrulation gelatinization cephalizationarrow_forwardThe mode of Caenorhabditis elegans nematode sex determination is based on ________. XX and XY chromosomes for females and males, respectively. XX and XO for females and males, respectively. XO and YY chromosomes for females and males, respectively. ZW and ZZ for females and males, respectively. XX and XO chromosomes for hermaphrodites and males, respectively.arrow_forwardIt asks to use the development images below to identify one of each of the following in the photos: Zygote -Morula 2-celled stage -Blastula 8-celled stage -Gastrulaarrow_forward
- make a concept map, to discuss how reproduction takes place in animals. (Include the modes, sexual and asexual; and fertilization)arrow_forwardWhich process:arrow_forwardArchegonium is an example of female gametangium in plants, which produce motile egg cell. * O False O True The enzyme which catalyzes complementary DNA from RNA templatarrow_forward
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Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY