BIOLOGY (OER)
2nd Edition
ISBN: 2810023110482
Author: OpenStax
Publisher: MBS
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 43, Problem 34CTQ
Why would paired external fertilization be preferable to group spawning?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
2)Why are organisms that broadcast spawn useful for studying fertilization & development?
a)Fertilization does not require multiple gametes
b)Fertilization occurs outside the bodies of the parents, so it can be directly observed
c)Fertilization is observable because the eggs are large enough to see
d)Fertilization occurs without the need for parents
Why is long-term parental care not associated with having many offspring during a reproductive episode?
Polygyny is a common mating system in nature. Which one of the following scenarios is LEAST likely to result in a polygynous mating system?
Male stalk-eyed flies form leks where receptive females come visit
Male Neotropical giant damselfly defend water-filled tree holes, which are the oviposition sites for females. Suitable tree holes for oviposition are rare and females must mate with the resident male in exchange for access to the oviposition sites.
Male Bengal tigers defend large territories that contain food sources. Female Bengal tigers visit male territories to mate. The density of the Bengal tiger is extremely low that male tigers rarely encounter more than one female in their lifetime.
In the bumblebee-wolf Philanthus bicinctus, females are unreceptive until they finish constructing the long underground burrow as nest sites. Males search for locations containing a number of newly constructed burrows and attempt to control these sites against the intruders.
Your cousin Peter…
Chapter 43 Solutions
BIOLOGY (OER)
Ch. 43 - Figure 43.8 Which of the following statements...Ch. 43 - Figure 43.15 Which of the following statements...Ch. 43 - Figure 43.17 Which of the following statements...Ch. 43 - Which form of reproduction is thought to be best...Ch. 43 - Which form of reproduction can result from damage...Ch. 43 - Which form of reproduction is useful to an animal...Ch. 43 - Genetically unique individuals are produced...Ch. 43 - External fertilization occurs in which type of...Ch. 43 - Which term applies to egg development within the...Ch. 43 - Which term applies to egg development outside the...
Ch. 43 - Sperm are produced in the______ scrotum seminal...Ch. 43 - Most of the bulk of semen is made by the...Ch. 43 - Which of the following cells in spermatogenesis is...Ch. 43 - Which female organ has the same embryonic origin...Ch. 43 - Which female organ has an endometrial lining that...Ch. 43 - How many eggs are produced as a result of one...Ch. 43 - Which hormone causes Leydig cells to make...Ch. 43 - Which hormone causes FSH and LH to be released?...Ch. 43 - Which hormone signals ovulation? FSH LH inhibin...Ch. 43 - Which hormone causes the regrowth of the...Ch. 43 - Nutrient and waste requirements for the developing...Ch. 43 - Progesterone is made during the third trimester by...Ch. 43 - Which contraceptive method is 100 percent...Ch. 43 - Which type of short term contraceptive method is...Ch. 43 - Which hormone is primarily responsible for The...Ch. 43 - Major organs begin to develop during which part of...Ch. 43 - Which of the following is false? The endoderm,...Ch. 43 - During cleavage, the mass of cells: increases...Ch. 43 - Which of the following gives rise to the skin...Ch. 43 - The ribs form from the ___________ . notochord...Ch. 43 - Why is sexual reproduction useful if only half the...Ch. 43 - What determines which sex will result in offspring...Ch. 43 - What are the advantages and disadvantages of...Ch. 43 - Why would paired external fertilization be...Ch. 43 - Describe the phases of the human sexual response.Ch. 43 - Compare spermatogenesis and oogenesis as to timing...Ch. 43 - If male reproductive pathways are not cyclical,...Ch. 43 - Describe the events in the ovarian cycle leading...Ch. 43 - Describe the major developments during each...Ch. 43 - Describe the stages of labor.Ch. 43 - What do you think would happen if multiple sperm...Ch. 43 - Why do mammalian eggs have a small concentration...Ch. 43 - Explain how the different germ layers give rise to...Ch. 43 - Explain the role of axis formation in development.
Additional Science Textbook Solutions
Find more solutions based on key concepts
(a) The "lead" in pencils is a graphite composition with a Young's modulus of about 1109 N/ m2. Calculate the c...
College Physics
Pseudohypertrophic muscular dystrophy is an inherited disorder that causes gradual deterioration of the muscles...
Campbell Biology (11th Edition)
Your bore cells, muscle cells, and skin cells look different because a. different kinds of genes are present in...
Campbell Essential Biology (7th Edition)
Johnny was vigorously exercising the only joints in the skull that are freely movable. What would you guess he ...
Anatomy & Physiology (6th Edition)
7. Which bones form via intramembranous ossification?
a. Irregular bones
b. Certain flat bones
c. Long bones
d....
Human Anatomy & Physiology
SCIENTIFIC INQUIRY You are handed a mystery pea plant with tall stems and axial flowers and asked to determine ...
Campbell Biology (10th Edition)
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
- Why are sea urchins have external fertilization? What are the adaptive advantages of external fertilization? How about internal fertilization?arrow_forwardWhy does the mode of fertilization correlate with thepresence or absence of male parental care?arrow_forwardMale parental care occurs in only 7% of fishes and amphibianspecies with internal fertilization but in 69% of species with externalfertilization. Propose an explanation for why this is so.arrow_forward
- Write a short note on fertilization in Riccia ?arrow_forwardWhich statement below is FALSE regarding the differences between sea urchin and mammals? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a External fertilization is observed in sea urchins, whereas internal fertilization is used in mammals. External fertilization is observed in mammals, whereas internal fertilization is used in sea urchins. Urchins produce thousands of eggs, whereas humans produce only one egg that when fertilized becomes a zygote. Once sea urchins release their gametes, they move on to feeding on other normal activities and do not worry about their progeny at all. Unanswered A Submitarrow_forwardWhat are the advantages and disadvantages of internal fertilization over external fertilization? How about the advantages and disadvantages of external fertilization over internal fertilization? Enumerate.arrow_forward
- What is one challenge posed by copulation between separate sexes? What are some adaptations that grasshoppers have developed that address these challenges?arrow_forwardWhy is mating important in external fertilization of animals? A) It ensures survival of offspring B) It ensures sperm dilution C) For pleasure D) It ensures fertilizationarrow_forwardgive one species that is classified or exhibit the following: male to male combat show a photograph of it with its sexual traits (body stuctures, behavior, etc) and how these traits help their reproduction. explainarrow_forward
- Which of the following steps of sea urchin fertilization initiates the formation of the fertilization envelope? A Acrosomal reaction Fast block to polyspermy Egg activation Cortical reaction Chemo-attractionarrow_forwardWhat is NOT a disadvantage of internal fertilization? the ability to reproduce on land without needing external water the need for more specialized reproductive structures the production of fewer embryos the reduction in the randomness of fertilization (less genetic variability in offspring)arrow_forwardBecause the reproductive success of female Hanuman langurs (Semnopithecus entellus) is almost certainly lowered when a newly installed male kills their young infants, selection should favor countermeasures against infanticidal males. In this light, why might already pregnant females mate with a new male soon after a takeover even though they are not ovulating? What significance do you attach to the discovery that when mares are impregnated by stallions at stables away from their home locations, they will also copulate repeatedly with the males in their home stables upon their return?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Reproduction: Crash Course Zoology #9; Author: CrashCourse;https://www.youtube.com/watch?v=poLyJDVjKlM;License: Standard youtube license