WHAT IS LIFE ACHIEVE ACCESS ONLY >I<
5th Edition
ISBN: 9781319487317
Author: PHELAN
Publisher: INTER MAC
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 11, Problem 10MC
Summary Introduction
Introduction:
Sexual dimorphism is thought to have evolved due to male-male competition and the need to attract females.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Compared with external fertilization, in internal fertilization,a. male gametes have a higher chance to come into close proximity tofemale gametes.b. gametes are less protected against predation or other harmfulenvironmental factors.c. there is a decreased likelihood of desiccation of gametes.d. gametes come into contact only outside the mother’s reproductivetract.e. Both b and c are true of internal fertilization.
Compare and contrast sexual and asexual reproduction. Identify the most accurate statement.
a.
Asexual reproduction results in more offspring per mother.
b.
Sexual reproduction is always more costly.
c.
Sexual reproduction is associated with an increase in homozygosity.
d.
Asexual reproduction is always bad for a species.
A male and female gibbon that are similar in size likely demonstrate the lack of sexual dimorphism…
A : due to the polygamous social structure in gibbons.
B : as the result of unequal access to resources within their environment.
C : which is not related to social structure in gibbons.
D : due to adaptations related to Allen’s rule.
E : due to decreased competition for mates in a monogamous social structure.
Chapter 11 Solutions
WHAT IS LIFE ACHIEVE ACCESS ONLY >I<
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
- Unchanging environments are advantageous to organismsa. that reproduce asexually.b. that undergo indirect development.c. in which fertilization occurs internally.d. that undergo pattern formation.arrow_forwardAre the following primates (same species) exhibiting sexual dimorphism? Explain your reasoning:arrow_forwardIn humans, mammals and many other chordates sexual reproduction takes place by fusion of large immobile ovum and small motile sperm. This kind of sexual reproduction is: Select one: a. Isogamy b. Schizogony c. Oogamy d. Conjugation e. Polytenyarrow_forward
- #4: In clown fish (chose one answer) A. Individuals are protandrous.B. It is better to be male when you are small and a female when you are big.C. Everyone begins life as a male.D. All of the abovearrow_forwardWhich of the following is not true about starfish eggs? Choose all possible answers a. eggs are fertilized prior to completion of the first meiotic divisions. b. eggs are generally less yolky and therefore cleave meroblastically. c. first two cleavage planes are meridional d. Each quartet (blastomeres) occupies a plane lying perpendicular to the animal-vegetal axis. e. All are true about the starfish eggs.arrow_forwardWhich of the following correctly describes hermaphroditism? A. It is an example of sexual reproduction because it involves a male and a female. B. It is an example of asexual reproduction because only one individual needs to be involved. C. It is an example of sexual reproduction because it involves fusion of two gametes. D. It is an example of asexual reproduction because the offspring are genetically identical to the parent.arrow_forward
- give 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_forwardChimpanzee males have large testes for their body size. One widely accepted theory proposed to explain this feature is that it is … A. a form of male dominance display. B. a response to the large estrus swelling in females. C. necessary because chimpanzee females have low fertility. D. a consequence of sperm competition. E. attractive to female chimpanzees.arrow_forwardWhich of the following statements is TRUE? A. Animals with indirect development requires external fertilization and an aquatic environment B. Protandry refers to species that begins life as male but later on transforms into females C. Parthenogenesis is a form of sexual reproduction di D. Animals may reproduce either sexually or asexually but never botharrow_forward
- Which among these insects secrete seducin by the male which both attracts andpacifies the untamed female so that a connection is established?A. Bombus lapidaries.B. Periplaneta Americana.C. Eciton burchellii.D. Nauphota cinerae. How would you classify the type of ovariole of the following orders Neuroptera,Lepidoptera, some Coleoptera, Diptera andHymenoptera?A. polytrophic type of ovarioleB. telotrophic type of ovarioleC. panoistic type of ovarioleD. both B and C Which part of the egg is closely associated to the chorion?A. yolk deutoplasmB. vitelline membraneC. nuclear cytoplasmD. periplasm What is the major control centers of oogenesis that secretes ecdysone?A. headB. fat bodiesC. ovariesD. corpora allataarrow_forwardA scientist for one of the Water Management Districts near Victoria conducts a study of the effects of industrial wastewater on marine clams (animals that are sessile as adults) by comparing the density and reproductive condition of clams collected within 100 m of a discharge pipe with those collected 10 km away. He found very low densities of clams near the pipe and those that were there had very small gonads. You have been hired by the company discharging wastewater via this pipe to explain why these data should not be used to shut you down. What scientific arguments are you going to make to the review board? Hint: don’t talk about study design issues….tell me about what other ecological factors might be at play here.arrow_forwardPolygyny 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…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 LearningConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College