Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 43, Problem 5MC
Summary Introduction
Introduction:
Implantation is the process of embedding the fertilized egg (zygote) in the uterus six to nine days after fertilization. The outer layer of membrane forms chorion which helps in the exchange of the gases and nutrients. The combination of chorion and endometrium generates placenta.
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After the zygote undergoes several mitotic divisions, the resulting structure that implants in the endometrium is called
Select one:
a. zygote
b. morula
c. blastocyst
d. embryonic disc
A study of the early embryo indicates that the glans penis of the maledevelops from the same embryonic structure as which of these femalestructures?a. labia majora c. clitoris e. urinary bladderb. uterus d. vagina
What happens to the stratum functionalis of the endometrium during menstruation?
Group of answer choices
a.it gets larger and more energy-rich
b.it develops into the myometrium
c.it allows implantation of the embryo
d.it is sloughed off
Chapter 43 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 43.1 - define development and describe how cell division...Ch. 43.2 - Prob. 1CYLCh. 43.3 - describe early development in amphibians,...Ch. 43.3 - Prob. 2CYLCh. 43.4 - Prob. 1TCCh. 43.4 - Prob. 2TCCh. 43.4 - Prob. 1CYLCh. 43.4 - Prob. 2CYLCh. 43.4 - Does the development of a human limb, and the rest...Ch. 43.5 - Prob. 1TC
Ch. 43.5 - Prob. 1CSCCh. 43.5 - Prob. 1ETCh. 43.5 - Prob. 2TCCh. 43.5 - Prob. 1HYEWCh. 43.5 - describe human embryonic development from...Ch. 43.5 - describe the structure and function of the...Ch. 43.5 - Prob. 3CYLCh. 43.6 - Prob. 1TCCh. 43.6 - Prob. 1CYLCh. 43.6 - Prob. 2TCCh. 43 - Prob. 1MCCh. 43 - Animals with Indirect development a. develop...Ch. 43 - Prob. 3MCCh. 43 - Prob. 4MCCh. 43 - Prob. 5MCCh. 43 - Prob. 1FIBCh. 43 - Prob. 2FIBCh. 43 - Prob. 3FIBCh. 43 - Prob. 4FIBCh. 43 - Prob. 1RQCh. 43 - Describe the structure and function of the four...Ch. 43 - What is gastrulation? Describe gastrulation in...Ch. 43 - Prob. 4RQCh. 43 - Prob. 5RQCh. 43 - In humans, where does fertilization occur, and...Ch. 43 - Prob. 7RQCh. 43 - Prob. 8RQCh. 43 - How do changes in the breast prepare a mother to...Ch. 43 - Prob. 1ACCh. 43 - Prob. 2AC
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- Nutrient and waste requirements for the developing fetus are handled during the first few weeks by _____. a. the placenta b. diffusion through the endometrium c. the chorion d. the blastocystarrow_forwardWhich female organ has an endometrial lining that will support a developing baby? a. labia minora b. breast c. ovaries d. uterusarrow_forwardA human blastocyst normally implants in ................. a. an oviduct c. the uterus b. a seminiferous tubule d. the vaginaarrow_forward
- Which is/are true concerning oviducts? a. the lumen of the oviduct is highly folded b. the oviduct walls contain smooth muscle that promotes the movement of sperm through the oviduct c. the epithelium facing the lumen of the oviduct has cells that are ciliated, and which serve to help move ova, or fertlized ova, to the lumen of the uterus d. secretory cells lining the oviduct produce secretions that kill spermarrow_forwardGastrulation does NOT Select one: a. involve the formation of germ layers b. consist of endoderm, mesoderm, and ectoderm c. result in the formation of a third layer in the embryonic disk d. include the differentiation of cells into tissues and organsarrow_forwardThis structure connects the ovary with the uterus.a. cervix c. uterine tubeb. vagina d. endometriumarrow_forward
- Which of the following occurs during a capacition A. Regeneration of placenta B. Involution of the uterus C. Release of digestive enzymes from the acrosome D. Decreased use of simple sugars for energy productionarrow_forwardDuring morphogenesis, gastrulation does which of the following?A. Gastrulation produces the ectoderm through formation of a blastocyst.B. Gastrulation produces the mesoderm to form the lining of the digestive tract.C. Gastrulation provides the mechanisms whereby cells can form the neural tube.D. Gastrulation produces the endoderm through invagination of the blastula.arrow_forwardA gastrulation does NOT Select one: A. Consist of endoderm, mesoderm, and ectoderm B. Result in the formation of a third layer in the embryonic disc C. Involve the formnation of germ layers D. Include the differentiation of cells into tissues and organsarrow_forward
- Which of the following is not a mechanism on how contraceptive pills work to prevent pregnancy? A. thinning the endometrium to prevent implantation B. inhibition of follicular development and suppression of ovulation C. progesterone inhibits the sperm from penetrating through the cervix and female upper tract by making the cervical mucus unfriendly D. stimulates the production of high testosterone levelsarrow_forwardOdontoblasts are derived from a. Ectoderm b. Endoderm c. Histiocytes d. Undifferentiated mesenchymal cellsarrow_forwardThe fusion of a sperm and an egg cell initally produces which of thefollowing?a. blastocyst d. gameteb. zygote e. stem cellc. morulaarrow_forward
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