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Ch. 47 - Animal Reproduction and Development
Chapter 46, Problem 1

What term describes the mode of asexual reproduction in which offspring develop from unfertilized eggs? a. parthenogenesis b. budding c. regeneration d. fission

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1
Step 1: Understand the question. The question is asking for the term that describes a mode of asexual reproduction where offspring develop from unfertilized eggs.
Step 2: Review the options. We have four options: parthenogenesis, budding, regeneration, and fission.
Step 3: Recall the definitions of each term. Parthenogenesis is a type of asexual reproduction in which an egg develops into a new individual without being fertilized. Budding is a form of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site. Regeneration is a process by which organisms replace lost or damaged body parts. Fission is a form of asexual reproduction in which an organism divides into two or more parts, each of which becomes a new individual.
Step 4: Match the correct term to the definition given in the question. The definition given in the question matches the definition of parthenogenesis.
Step 5: Choose the correct answer. The correct answer is a. parthenogenesis.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Asexual Reproduction

Asexual reproduction is a mode of reproduction that does not involve the fusion of gametes. Instead, offspring are produced from a single parent organism, resulting in genetically identical clones. This process is common in many organisms, including bacteria, plants, and some animals, allowing for rapid population growth in stable environments.
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Parthenogenesis

Parthenogenesis is a specific type of asexual reproduction where offspring develop from unfertilized eggs. This process occurs in various species, including some reptiles, amphibians, and insects. Parthenogenesis allows for reproduction without the need for male fertilization, enabling populations to persist in environments where mates are scarce.
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Types of Asexual Reproduction

There are several types of asexual reproduction, including budding, regeneration, and fission. Budding involves the formation of a new organism from a protrusion on the parent, while regeneration refers to the ability of an organism to regrow lost parts. Fission is the division of a single organism into two or more separate entities. Understanding these types helps differentiate between various reproductive strategies in the biological world.
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