Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 47, Problem 3TYK
Summary Introduction
Introduction:
Cleavage, gastrulation, and embryogenesis are the major stages in the embryonic development. After fertilization, there is a rapid cell growth and development, which is called cleavage.
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Chapter 47 Solutions
Biological Science (6th Edition)
Ch. 47 - Prob. 1TYKCh. 47 - Prob. 2TYKCh. 47 - Prob. 3TYKCh. 47 - Prob. 4TYKCh. 47 - Summarize the experimental evidence that Daphnia...Ch. 47 - Prob. 6TYUCh. 47 - 7. How do spermatogenesis and oogenesis in humans...Ch. 47 - 8. Give examples of negative feedback and positive...Ch. 47 - Prob. 9TYPSSCh. 47 - Prob. 10TYPSS
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- How does the oocyte prevent polyspermy? a) Changing the structure of the zona pellucida when a sperm fuses with the oocyte cell membrane b) Releasing enzymes, which destroy all other sperm c) Moving away from any surrounding sperm d) Shedding the zona pellucidaarrow_forwardWhy does continued breastfeeding decrease the chance of pregnancy? (Hint: Think about the effect the breastfeeding hormones have on estrogens and progesterone.)?arrow_forwardIn the fallopian tube, an egg cell is moved toward the uterus by?arrow_forward
- Which cell contributes the necessary nutrition to the growing zygote? a a polar body b the egg cell c a spermatocyte d the sperm cellarrow_forwardDuring 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_forwardHow does folate deficiency affect fetal development? A. It does not affect fetal development B. It increases the health of the fetus C. It can cause birth defects D. It helps the fetus to develop fasterarrow_forward
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