Use the following information to answer the question.
For several decades now, amphibian species worldwide have been in decline. A significant proportion of the decline seems to be due to the spread of the chytrid fungus, Batrachochytrium dendrobatidis (Bd). Chytrid sporangia reside within the epidermal cells of infected animals, animals that consequently show areas of sloughed skin. They can also be lethargic, which is expressed through failure to hide and failure to flee. The infection cycle typically takes four to five days, at the end of which zoospores are released from sporangia into the environment. In some amphibian species, mortality rates approach 100 % ; other species seem able to survive the infection. Apart from direct amphibian-to-amphibian contact, what is the most likely means by which the zoospores spread from one free-living amphibian to another? A. by wind-blown spores B. by flagella C. by cilia D. by hyphae

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23-08-2022
Biology

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Use the following information to answer the question.
For several decades now, amphibian species worldwide have been in decline. A significant proportion of the decline seems to be due to the spread of the chytrid fungus, Batrachochytrium dendrobatidis (Bd). Chytrid sporangia reside within the epidermal cells of infected animals, animals that consequently show areas of sloughed skin. They can also be lethargic, which is expressed through failure to hide and failure to flee. The infection cycle typically takes four to five days, at the end of which zoospores are released from sporangia into the environment. In some amphibian species, mortality rates approach 100 % ; other species seem able to survive the infection. Apart from direct amphibian-to-amphibian contact, what is the most likely means by which the zoospores spread from one free-living amphibian to another? A. by wind-blown spores B. by flagella C. by cilia D. by hyphae

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Option (B) by flagella is correct.

Apart from direct amphibian-to-amphibian contact, the most likely means by which the zoospores spread from one free-living amphibian to another is by flagella.

What is zoospores?

A zoospore is a mobile, asexual spore that moves by using its flagellum.
These spores, which are also known as swarm spores, are produced by various protists, bacteria, and fungus to reproduce.

Spores from some algae, fungus, and protozoans are a few examples.

The extremely mobile zoospore is an asexual propagule that is ideally suited for aquatic short-distance dissemination in the majority of zoosporic fungi.
Its purpose is to swiftly transfer the protoplasm to the proper digestible substrate.

What is chytrid fungus?

Informally referred to as "chytrids," Chytridiomycota is a division of zoosporic organisms in the kingdom Fungi.
The word, which refers to the structure holding immature zoöspores, is derived from the Ancient Greek and means "small pot."

Learn more about chytrids here:

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