Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 61, Problem 3.2A
Summarize your observations of any similarities noted between sea urchin and human early development stages.
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Address the items below as they relate to human embryology;
a) discuss when the germ layers of human development begin to form, explain how each originates, explain what each will differentiate into, and what happens to each layer immediately after formation
b) distinguish the developmental differences between a 20 day old embryo and a 4wk embryo in humans.
Examine whether the statement "Because of the many later developmental transformations that produce the elaborately structured organs, the body plan set up during gastrulation bears little resemblance to the body plan in the adult is true or false.
List the advantages of evolving a deuterostome pattern of development.
Chapter 61 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 61 - The ovum and sperm unite and form a diploid cell...Ch. 61 - The ________ is the development stage that...Ch. 61 - Which of the following is not an extraembryonic...Ch. 61 - The placenta is comprised of a. only the...Ch. 61 - The embryonic stage of human development exists a....Ch. 61 - The zonapellucida gel layer surrounds the...Ch. 61 - A single completed oogenesis sequence produces...Ch. 61 - A single completed spermatogenesis sequence...Ch. 61 - Human gametes Contain ______________ chromosomes.Ch. 61 - The diploid number of human chromosomes found in...
Ch. 61 - To create genetic variation, ______________...Ch. 61 - To create genetic variation, ______________...Ch. 61 - The cell resulting from fertilization is called...Ch. 61 - Tiny cells that form during meiotic divisions of...Ch. 61 - Fertilization and early embryonic development...Ch. 61 - A solid ball of about sixteen cells is called a...Ch. 61 - The part of meiosis that is most similar to...Ch. 61 - Meiosis I reduces the chromosome number in half,...Ch. 61 - Implantation of the ____________ into the...Ch. 61 - The two-cell, four-cell, eight-cell, and morula...Ch. 61 - Match the terms in column A with the descriptions...Ch. 61 - Summarize your observations of any similarities...
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- Examine insect development. 1) Contrast incomplete metamorphosis and complete metamorphosis. 2) Identify two insects that undergo an incomplete metamorphosis during development. 3) Identify two insects that undergo a complete metamorphosis during development.arrow_forwardState the differences of the frog and human embryology.arrow_forwardDefine and describe the main features of the following developmental stages: fertilization, cleavage, gastrulation.arrow_forward
- List down 3 differences and 3 similarities between the embryonic development of human & chicksarrow_forwardWhich of the following is common to the development of bothbirds and mammals?(A) holoblastic cleavage(B) epiblast and hypoblast(C) trophoblast(D) gray crescentarrow_forwardIn this discussion, you will discuss the evolutionary advantages of the amniotic egg. Explain how each component of the egg plays a role in survival of the embryo.arrow_forward
- A human is a complex organism that develops from a zygote. Briefly explain some of the the steps in this development process in the form of a paragraph. In your answer, be sure to: 1) explain how a zygote formed, 2) compare the genetic content of the zygote to the body cells of the parents, 3) identify the structure in which embryonic/fetal development usually occurs within, and 4) identify the structure that forms, which provides nourishment and waste removal to/from the developing baby.arrow_forwardAt which of the following stages of development is a frog embryo composed of the most cells? Group of answer choices A. blastula B. neural tube stage C. gastrula D. zygote (fertilized egg)arrow_forwardMrs. Robinson is comparing the embryos of parrot fish and salamanders. Although the adult organisms look very different, the embryos follow similar developmental patterns. What does this similarity suggest?arrow_forward
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