Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 42, Problem 6SQ
The ________, a fluid-filled sac, surrounds and protects a human embryo and keeps it from drying out.
- a. amnion
- b. yolk sac
- c. allantois
- d. chorion
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Chapter 42 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 42 - The end product of cleavage is a __________. a....Ch. 42 - The outermost germ layer in a vertebrate gastrula...Ch. 42 - Prob. 3SQCh. 42 - Match each term with the most suitable...Ch. 42 - In humans, fertilization typically occurs in the...Ch. 42 - The ________, a fluid-filled sac, surrounds and...Ch. 42 - Prob. 1DAACh. 42 - Prob. 2DAACh. 42 - Prob. 3DAACh. 42 - Birth Defects and Multiple Births A woman who...
Ch. 42 - The placenta consists of __________. a. embryonic...Ch. 42 - During the fetal period, ____________. a....Ch. 42 - Prob. 9SQCh. 42 - Match each hormone with its action(s). ______...Ch. 42 - Prob. 11SQCh. 42 - Prob. 12SQCh. 42 - Prob. 13SQCh. 42 - Prob. 14SQCh. 42 - Prob. 15SQCh. 42 - The rubella virus causes German measles. If a...Ch. 42 - Prob. 2CTCh. 42 - Prob. 3CT
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- During embryonic development, unique cell layers develop into specific groups of tissues or organs during a stage called ________. a. the blastula stage b. the germ layer stage c. the gastrula stage d. the organogenesis stagearrow_forwardLayer A is called _____X________, and ______Y________ develops from this layer. Select one: a. X Y Ectoderm Nervous system b. X Y Endoderm Nervous system c. X Y Endoderm Lining of the digestive tract d. X Y Ectoderm Lining of the digestive tractarrow_forwardIn the development of amniotes (reptiles, birds, mammals), the defining feature of gastrulation is/are the __________________________. Choose all possible answers. a. Blastopore b. Blastomere c. Blastocoel d. Primitive streak e. Epiblast f. Koller’s sicklearrow_forward
- An example of a rare genetic disorder in which a person lacks enough blood-clotting proteins caused by a change in one of the genes. a. baldness b. hypertrichosis pinnae auris c. color blindness d. hemophiliaarrow_forwardThe foramen ovale causes the fetal circulatory system to bypass the ________. a. liver b. lungs c. kidneys d. gonadsarrow_forward_____________ is a tranquilizer that is also known as the “date rape” drug. a. Halcion b. Librium c. Rohypnol d. Xanaxarrow_forward
- Match the structures found in the fetal circulation with what each fetal structure becomes after birth: _____ Foramen ovale a. Ligamentum venosum _____ Ductus arteriosus b. Fossa ovalis _____ Ductus venosus c. Ligamentum arteriosarrow_forwardThe single most important risk for skin cancer is ________________. a.genetics b.overexposure to UV radiation c.race d.use of farm chemicalsarrow_forward_________2. Which is not an application of recombinant DNA technology in medicine? a. Growth Hormone b. Insulin c. golden rich d. Blood clotting factor VIIIarrow_forward
- What is the correct path of sperm during ejaculation?_________ A. Ejaculatory duct, epididymis, vas deferens, urethra B. Vas deferens, ejaculatory duct, epididymus, urethra C. Epididymis, ejaculatory duct, vas deferens urethra D. Epididymis, vas deferens, ejaculatory duct, urethraarrow_forwardpigment in bottom layer? A. melatonin B. melanin C. mesoderm D. ectodermarrow_forwardthe barrier seperates the spermatocytes dividing by meiosis from exposing their unique antigens to the immune system. a. blood-brain barrier b. blood-testes barrier c. blood-vas deferens barrierarrow_forward
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Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY