Campbell Biology Custom Stony Brook 10 Th Edition
10th Edition
ISBN: 9781269870818
Author: Reece Urry Cain Wasserman Minorsky 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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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
Campbell Biology Custom Stony Brook 10 Th 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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- 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)Fiftharrow_forwardBriefly compare and contrasts the advantage of asexual and sexual reproduction. Which one is most common in animals?arrow_forwardWhat are the phases displayed?arrow_forward
- In 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_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_forward
- Mature Medusa 1. Look at the life cycle diagram of a jellyfish species on the right. Immature Medusa a) Indicate which type of reproduction (asexual or sexual) takes place at each of the four stages indicated on the diagram. Explain how you can tell. Fertilised Egg 4 1 Blastula b) What are the advantages of having Medusa Planula - Bud Larva both asexual and sexual reproductive capabilities? c) Under which circumstances do many organisms, such as rotifers and single-celled plankton, switch from asexual to sexual 3 Colony Polyp Bud Polyp reproduction? Why? Frustule Bud Frustule Larvaarrow_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_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
- The repeated segments, containing homologous structures in an Annelid are known as....? Group of answer choices metameres strobili tagma septaarrow_forwardWhich process:arrow_forward1. Examine the image below. M G2 G1 Go as mee Match the phase from the cell cycle in the column on the left with the process that occurs during the phase on the right. (2 points) [Use ALL choices] G1 phase DNA synthesis S phase new growth cell division G2 phase final growth and preparation for cell division M phase 2. Choose a word from the drop-down menu for each blank to complete the sentences below. During mitosis, one cell divides into two daughter cells with [CHOICE 1] genetic material. In comparison, asexual reproduction allows a single, simple organism to reproduce, yielding an offspring that is genetically [CHOICE 2] when compared to the parent. Choice 2 Choice 1 similar similar different different identical identicalarrow_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