AP BIOLOGY

ANIMAL REPRODUCTION AND DEVELOPMENT

ASEXUAL REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ is a type of asexual reproduction in which a piece of a parent organism breaks off to form an new organism (ex. starfish).
A
fission
B
budding
C
Regeneration
D
fertilization
Explanation: 

Detailed explanation-1: -3) Fragmentation: Organisms break into two or more fragments that develop into a new individual. Occurs in many plants, as well as some animals (like coral, sponges, and starfish). Starfish losing an arm. The arm fragment grows into another starfish and the original starfish regrows its lost arm.

Detailed explanation-2: -Fragmentation occurs when a parent organism breaks into fragments, or pieces, and each fragment develops into a new organism. Starfish, like the one in Figure below, reproduce this way. A new starfish can develop from a single ray, or arm.

Detailed explanation-3: -Budding. Budding is a form of asexual reproduction that results from the outgrowth of a part of a cell or body region leading to a separation from the original organism into two individuals. Budding occurs commonly in some invertebrate animals such as corals and hydras.

Detailed explanation-4: -Starfish exhibit an asexual mode of reproduction through binary fission and regeneration. Starfish is a bisexual organism and undergoes regeneration as a method for asexual reproduction. In binary fission, the parent organism’s cell divides exactly into two genetically identical daughter cells.

Detailed explanation-5: -Fragmentation is a form of asexual reproduction where a fragment of the parent breaks off and develops into an entirely new but genetically identical individual. The parent will then regenerate, or regrow, the piece that broke off, so in the end there are two new individuals from one.

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