Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305544703
Author: STARR
Publisher: Cengage
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Textbook Question
Chapter 42, Problem 4SQ
Match each term with the most suitable description.
| _____apoptosis | a. blastomeres form |
| _____embryonic induction | b. cellular rearrangements |
| _____cleavage | form primary tissues |
| _____gastrulation | c. cells die on cue |
| _____implantation | d. cells influence neighbors |
| e. blastocyst burrows into the uterus |
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Students have asked these similar questions
In human development, an embryo is most sensitive to chemicals, radiation, and pathogens during the first trimester because this is the time when
a) tissues are differentiating
b) organs are increasing in size
c) the fetus grows rapidly
d) fetal movements begin
e) implantation occurs
From which of the following is the embryo developed?
a) Trophoblasts
b) Blastocoelen
c) The yellow sacks
d) Inner cell mass
The folding of ectoderm on the top of the embryo during organogenesis produces...?
Group of answer choices
a. somites
b. the archenteron
c. the neural tube
d. the gastrula
e. the blastula
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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- 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_forwardThe beginning of brain and spinal cord formation is termeda. cephalocaudal folding.b. organogenesis.c. neurulation.d. gastrulation.arrow_forwardIf cells from the presumptive neural ectoderm of a frog gastrula are transplanted onto the surface of a second gastrula where skin would normally develop, the transplanted cells will still develop into tissues of the nervous system. This experiment shows that the transplanted cells areA. differentiated.B. totipotent.C. discontinuous.D. determined.E. endodermal.arrow_forward
- In human beings, after fertilisation, the structure which gets embedded in the wall of uterus is: (a) ovum (b) embryo (c) foetus (d) zygotearrow_forwardFor the first 8 weeks of gestation, a conceptus is nourished mainly by a. The placenta. b. Amniotic fluid. c. Colostrum. d. Decidual cells. e. Yolk cytoplasmarrow_forwardThe inner cell mass of a human blastocysta. gives rise to the chorion.b. gives rise to the placenta.c. gives rise to the embryo.d. consists of highly differentiated cells.arrow_forward
- The fetal period is (a) from weeks 9–38, (b) the time of rapid growth of body organs, (c) a time of cell differentiation, (d) all of the above, (e) none of the above.arrow_forwardWhich of the following statements is incorrect?a. The placenta secretes hormones such as progesterone, hCG, and estrogen.b. Embryonic tissue and maternal tissue forms the placenta.c. The chorion supplies nutrients to the embryo by diffusion.d. The umbilical cord is formed by one artery and two veinsarrow_forwardDuring the embryonic developmen, the trophoblast will developed into Select one: A. The embryonic disc B. The chorion C. The amnion and amniotic cavity D. The yolk sacarrow_forward
- Which of the following structure develops into only the fetus? A. Blastocyte B. Zygote C. Trophoblast D. Inner cell massarrow_forwardA chemical that prevents acrosomal proteins from interacting with proteins on the egg membrane would have which of the following immediate effects (i.e. which would happen first)? Group of answer choices A. Prevention of the fast block B.) Prevention of sperm recognition C.) Explosion of the egg into millions of tiny pieces D. Prevention of polyspermy E. Prevention of the slow blockarrow_forwardAn egg cell originally comes from an unspecialized diploid cell called a(an)… Group of answer choices A. secondary oocyte B. follicle C. primary oocyte D. oviduct E. oogoniumarrow_forward
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