BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 51, Problem 3A
Summary Introduction
Introduction:
A biological system that “determines the development of sexual characteristics in organism” is known as sex determination. The offspring that are produced by the sexual reproduction have two sexes, but occasionally, in the place of one or both sexes there are hermaphrodites.
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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.
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.
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. explain
Chapter 51 Solutions
BIOLOGY
Ch. 51.1 - Prob. 1LOCh. 51.1 - Prob. 2LOCh. 51.1 - Prob. 3LOCh. 51.2 - Prob. 1LOCh. 51.2 - Prob. 2LOCh. 51.3 - Prob. 1LOCh. 51.3 - Prob. 2LOCh. 51.3 - Prob. 3LOCh. 51.4 - Prob. 1LOCh. 51.4 - Explain ovulation and the female reproductive...
Ch. 51.4 - Prob. 3LOCh. 51.5 - Prob. 1LOCh. 51.5 - Describe causes of infertility.Ch. 51 - Prob. 1DACh. 51 - Why might it be adaptive for an individual to be...Ch. 51 - Prob. 2IQCh. 51 - Why do you think the brain is affected when the...Ch. 51 - You have discovered a new organism living in tide...Ch. 51 - Prob. 2UCh. 51 - Prob. 3UCh. 51 - Which of the following structures is the site of...Ch. 51 - FSH and LH are produced by the a. ovaries. b....Ch. 51 - Prob. 6UCh. 51 - Mutations that affect proteins in the acrosome...Ch. 51 - In humans, fertilization occurs in the____, and...Ch. 51 - The testicles of male mammals are suspended in the...Ch. 51 - Prob. 1ACh. 51 - Which of the following is a major difference...Ch. 51 - Prob. 3ACh. 51 - Internal and external fertilization differ in that...Ch. 51 - Prob. 1SCh. 51 - Why do you think that amphibians and many fish...Ch. 51 - How are the functions of FSH and LH similar in...Ch. 51 - Prob. 4SCh. 51 - Why are all parthenogenic parents female?
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- In 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_forwardWhich 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_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
- In mammals, sex is determined bya. the SRY gene on the Y chromosome.b. having two copies of the X chromosome.c. having one copy of the X chromosome.d. both a and carrow_forwardB.1. Let us assume that thick and short ovipositors are dominant to long and thin ovipositors. In a population of 2000 wasps, 16% of the population now have long and thin ovipositors. What is the frequency of individuals in the population that are heterozygous for this trait?arrow_forwardD. 2:3:1 5. In honey bees, males are developed parthenogeretically while workers are developed after sexual reproduction. The workers exhibit more similarity among themselves as compared to the queen If the workers start giving organism parthenogenetically then the offspring would most likely resemble: A. Among themselves and with mother B. Among themselves and with queen C Among themselves and with father D Among themselves and slightly differ from motherarrow_forward
- 1. Match the early embryo characteristics with the correct stage of development. Not all choices will be used a. ova (unfertilized egg) d. blastula e. gastrula b. zygote (fertilized egg) c. late cleavage/morula f. neurula Embryo is a hollow ball of cells Embryo is a single cell with a fertilization membrane Embryo is forming a notochord Embryo is a solid ball of cellsarrow_forwardThe parts of an ovule include the following structures. Indicate whether each is haploid or diploid. a. Archegonium b. Egg c. Female gametophyte d. Integument e. Nucellus f. Ovuliferous scalearrow_forwardExplain the sexual dimotrphism in cockroaches.arrow_forward
- Which of the following is a advantage of asexual reproduction? a.)Same DNA being passed down-NO GENETIC VARIATION IN THE OFFSPRING b.)If parent has genetic disease offspring will have it too c.)Only one parent involved. No searching for mates d.)Requires more cellular energyarrow_forwardIs this true or false? a. Fertilization is followed by a cleavage, a period of rapid cell division without growth. b. From the process above, this results in the production of a large number of cells called blastomeres. c. In sexual reproduction, the offspring have the same combinations of genes as their parents. d. Sequential hermaphroditism occurs when an animal is one sex during one phase of its lifecycle and the opposite sex during another phasearrow_forward1. During oogenesis, oogenetic inhibitors must be deactivated after full growth to allow the a. oogonium to undergo mitosis. b. ootid to transform into a zygote. c. primary oocyte to complete the first meiotic division. d. secondary oocyte to complete the second meiotic division. 2. Which of the following layers protect the mammalian oocyte during ovulation? * a. cortical and hyaline layers. b. vitelline envelope and jelly coat. c. granulosa cells and zona radiata. d. corona radiata and zona pellucida. 3. After ovulation, the following cells are transformed to lutein cells EXCEPT * a. theca cells. b. corona radiata cells. c. cumulus oophorus cells. d. stratum granulosum cells.arrow_forward
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