What Happens in Primary Fracture Healing

question 15

Multiple Choice

What happens in primary fracture healing?

• A) External periosteal soft tissue callus bridges between fracture fragments
• B) The new bone grows across the bone ends to unite the fracture site
• C) A callus forms that is larger (wider)than the two opposing bones
• D) All of the above

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Definitions:

Keystone Species

This term refers to a species that plays a critical role in maintaining the structure of an ecological community and whose impact on the ecosystem is disproportionately large relative to its abundance.

Pioneer Species

First organisms to colonize previously disrupted or damaged ecosystems, beginning a chain of ecological succession that ultimately leads to a more biodiverse steady-state ecosystem.

Invasive Species

Non-native species that spread rapidly in a new ecosystem, often causing harm to native species and their habitats.

Unlimited Financial Resources

Having access to an infinite amount of funds, allowing for unrestricted spending or investment.