Although They Serve No Known Current Functions, Vestigial Traits May

question 17

Multiple Choice

Although they serve no known current functions, vestigial traits may persist in some organisms for all of the following reasons EXCEPT that

• A) the trait is not costly to the organism.
• B) the trait has some function that we have not identified.
• C) there is some natural selection against the trait, and it is on its way out-eventually it will be lost.
• D) natural selection cannot act to eliminate traits.

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Identify appropriate IT support channels for resolving workplace technology issues.

Understand basic principles of Search Engine Optimization (SEO) to enhance website visibility.

Recognize assistive technologies that enable accessibility for users with disabilities.

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Definitions:

Canaliculi

Small, channel-like structures in bones that allow for the transport of nutrients and waste between blood vessels and cells.

Lamellae

Thin layers or plates found in bones, contributing to the structure of the compact and spongy bone tissue.

Lacunae

Small spaces in bone or cartilage tissue that house cells, specifically osteocytes in bone and chondrocytes in cartilage.

Canaliculi

Small, channel-like structures in bones, through which nutrients and wastes are exchanged between blood vessels and osteocytes.