EBK CAMPBELL BIOLOGY
11th Edition
ISBN: 9780134505589
Author: Urry
Publisher: PEARSON CO
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 46, Problem 10TYU
Summary Introduction
To determine: Why motile species are less often hermaphrodites.
Concept introduction:
Hermaphroditism is a condition in which an organism has both male and female reproductive systems. They produce both male and female gametes, so any two organisms can mate. In hermaphrodites, the gametes produced by meiosis have different genetic makeup than the parent organism.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
EVOLUTION CONNECTION Hermaphroditism is often foundin animals that are fixed to a surface. Motile species are lessoften hermaphroditic. Explain why.
Gastrulation in a mammal would be most similar to gastrulation in
a. a gecko.
b. a tuna.
c. an eagle.
d. no other species; mammalian gastrulation is unique
Reproduction is usually secual with both male and female sexes, however asexual reproduction does exist with several unique adaptations. Enumerate and explain four major factors that influence the ability of female to produce eggs and the number that are oviposited.
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The cortical reaction of sea urchin eggs functionsdirectly in(A) the formation of a fertilization envelope.(B) the production of a fast block to polyspermy.(C) the generation of an electrical impulse bythe egg.(D) the fusion of egg and sperm nucleiarrow_forwardDiagram of: The path traveled by sperm and egg in both humans and sharksarrow_forwardThe cells that pull the archenteron through the blastocoel in the sea urchin are _____ cells called mesenchyme Group of answer choices A. mesoderm B. endoderm C. meroblastic D. macrolecithalarrow_forward
- In species with internal fertilization, the eggs often are attached to the outside of the female's body in brood chambers following copulation, before hatching into free-swimming offspring. What advantages might a brood chamber offer for the development of offspring?arrow_forwardIn terrestrial arthropods, fertilization is always internal (True/False)?arrow_forwardIn sea urchin, which step of egg and sperm recognition involves the formation of a fertilization cone? Sperm binding to the egg's vitelline membrane Fusion of the sperm and egg membranes Acrosomal reaction Chemo-attraction Sperm binding to the egg's jelly coatarrow_forward
- The outermost germ layer in a vertebrate gastrula is the____ . a. endoderm c. mesoderm b. ectoderm d. dermisarrow_forwardOne of the characteristics unique to animals is(A) gastrulation.(B) multicellularity.(C) sexual reproduction.(D) flagellated sperm.arrow_forwardDescribe how the reproductive structures of each organism are adaptedtowards the given characteristics of the animals: 1. Parasitic lifestyle of Taenia solium 2. Vermiform body of the Ascaris suum 3. Absence of intromittent organ in Pheretima 4. Solitary and slow-moving lifestyle of Lissachatina fulica 5. Temperature regulation of mammalian sperm cell productionarrow_forward
- Nematodes and arthropods both (develop an anus from the blastopore formed during gastrulation/suspension feeders/grow by shedding their exoskeleton/have ciliated larva)?arrow_forwardChoose the correct statement w.r.t. Periplaneta a.In female cockroach, sperms are stored in spermatheca b.Incising and grinding regions are present in maxillae c.Both forewings and hind wings develop before last nymphal stage d.Anal cerci is responsible for sexual dimorphismarrow_forwardA: Why do sea urchins have external fertilization? [Discuss the life style of the developing sea urchin embryo in the water column compared to a very different ecological niche of the adults on the ocean floor. Besides, would you want to give live birth to a sea urchin! ouch!] 2: Then why don't the parents take care of the young? [In fact the adults do in a way. After the embryo has grown large enough and metamorphosed into a young urchin they hide in the spines of the adults, living off of the scraps of food produced from the messy eating of the adults] 3: Because the urchin life involves two or more ecological niches, they are more susceptible to predation and exposure to environmental toxins. What environmental conditions, predators and toxins might they be exposed to at each stage?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you