Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 42.1, Problem 3CYL
Summary Introduction
To describe:
The internal and external fertilization and provide examples of animals that use each of these methods of fertilization.
Introduction:
Fertilization is the process of fusion of the sex cells or gametes which are derived from the separate male and female individual of the same species. The sex cells of the male are called the sperm and the sex cells of the females are called the eggs. The sperm and egg cell are haploid in nature. The union of the sperm and eggs produces a diploid cell called a zygote.
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describe internal and external fertilization, and provide examples of animals that use each of these methods of fertilization?
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Chapter 42 Solutions
Biology
Ch. 42.1 - Prob. 1TCCh. 42.1 - Prob. 2TCCh. 42.1 - Prob. 1CSCCh. 42.1 - Prob. 1CYLCh. 42.1 - Prob. 2CYLCh. 42.1 - Prob. 3CYLCh. 42.2 - Mammalian sperm dont live very long after...Ch. 42.2 - Prob. 1TCCh. 42.2 - Prob. 1HYEWCh. 42.2 - describe the human male and female reproductive...
Ch. 42.2 - explain how hormonal interactons control...Ch. 42.2 - describe spermatogenesis and oogenesis, the...Ch. 42.3 - In 2017, scientists used CRISPR Cas9 DNA editing...Ch. 42.3 - describe the principal methods of contraception,...Ch. 42.3 - Prob. 2CTCh. 42 - In humans, sperm are produced in the a....Ch. 42 - In humans, fertilization usually occurs in the a....Ch. 42 - Prob. 3MCCh. 42 - Prob. 4MCCh. 42 - Prob. 5MCCh. 42 - Reproduction by a single animal, without the need...Ch. 42 - In mammals, the male gonad is called...Ch. 42 - Prob. 3FIBCh. 42 - Prob. 4FIBCh. 42 - Prob. 5FIBCh. 42 - Oocytes develop in a multicellular structure, the...Ch. 42 - Describe the advantages and disadvantages of...Ch. 42 - Compare the structures of the egg and sperm. What...Ch. 42 - Prob. 3RQCh. 42 - List the structures, in order, through which a...Ch. 42 - Name the three accessory glands of the male...Ch. 42 - Prob. 6RQCh. 42 - Prob. 1AC
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- Give the process of internal fertilization in turtle. Show illustration how the fertilization happens inside the turtlearrow_forwardDescribe the step-by-step fertilization process in an amphibian. (Please include the structures involved in the process.)arrow_forwardDescribe internal fertilization process in sea urchin.arrow_forward
- What mechanisms have evolved in animals with(a) external fertilization and (b) internal fertilizationthat help offspring survive to adulthood?arrow_forwardExplain further each number. What are the 4 major events comprising the process of fertilization? What are the strategies employed by animals for success of the egg meeting the sperm?arrow_forwardIn terrestrial arthropods, fertilization is always internal (True/False)?arrow_forward
- Compare and contrast the mechanisms of egg activation in internal versus external fertilization.arrow_forwardDiscuss the process and pathways of fertilzation in turtles. Also provide or show a diagram how does fertilization occur in female turtlesarrow_forwardWhat happens in the process of fertilization in animals and humans?arrow_forward
- Describe the gastrulation by using embryos of the sea star as an example.And describe the way in which the mass of inert yolk influences the gastrulation in bird and frog embryos.arrow_forwardCompare gastrulation in the frog and the chickarrow_forwardIllustrate a model of female reproductive system of turtle showing structures and pathways during ovipositionarrow_forward
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