Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
10th Edition
ISBN: 9780133922851
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
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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6)From the menu on the left on Virtual Urchin, click on "embryogenesis to hatching". This will display a video of sea urchin development. Photos of key stages taken with a scanning electron microscope (SEM) are shown next to the video. In addition to watching the video by clicking the play button, you can use the slider at the bottom to move through the stages step by step. Doing this will allow you watch how cell division increases the number of cells from the initial zygote. You'll notice that these divisions start off dividing cells evenly, but at a certain point, there are some smaller cells created. These smaller cells will play very important roles in the later development stages of the urchin, so their creation is a key milestone.
Which round of cell division is uneven? (hint: the SEM images will be helpful)
a)First
b)Second
c)Third
d)Fourth
e)Fifth
Chapter 46 Solutions
Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
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 - Prob. 3CCCh. 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_forwardNotice that the size of the scale bar is 50 um. Keeping this image available, watch the șsea 4. Finding the size of a sea urchin embryo Observe the image of the sea urchin embryo. 50μm Photo credit. urchin embryo cell division movie Calculate the diameter of a sea urchin embryo at he one-, two-, and four-cell stages, Show your calculations below. If that video doesn't play (it unfortunately requires Flash), you can try this similar but longer one that involves a longer story of sea urchin romance preceding fertilization and zygote divisions! It lacks a scale bar, but you can use the scale bar from the image above. https://www.youtube.com/watch?v3D4445zftlCDQ a. One cell-your calculations: b. Two cells-your calculations: c. Four cells-your calculations:arrow_forwardBriefly compare and contrasts the advantage of asexual and sexual reproduction. Which one is most common in animals?arrow_forward
- What are the phases displayed?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_forwardMind map about asexual and sexual reproduction of animalsarrow_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_forwardOrder the events leading to the sperm's nucleus fusing with the egg's nucleus. Question 1 options: sperm's nucleus is released into the egg's cytoplasm sperm burrows through the orona radiata sperm's nucleus and egg's nucleus fuse sperm's cell memrbane fuses with egg's cell membrane sperm's acrosome enzymes burrows through the zona pellucida the zona pellucida changes so that any new sperm's acrosome cannot burrow through the zona pellucidaarrow_forwardmake a concept map, to discuss how reproduction takes place in animals. (Include the modes, sexual and asexual; and fertilization)arrow_forward
- If a deuterostome embryo split apart and one of the cells broke away early in it's development, then; The embryo would die, however the cell that broke away could survive and grow into a new individual The embryo would cease development and die Both the embryo and the cell that broke away could develop into separate animalsarrow_forwardThe process by which an animal's embryonic cells specialize into specific cell types is called ___. specialization cloning regeneration differentiation senescencearrow_forwardThe repeated segments, containing homologous structures in an Annelid are known as....? Group of answer choices metameres strobili tagma septaarrow_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