Answer:
C. Bone fusion
B. Skull sutures
Explanation:
When lacking information about the age of a specimen, you can apply different techniques using the skeleton to find out the approximate age of the individual.
Usually, teeth are useful in determining the age of the specimens. But in some species, age determination through these structures is not easy. It requires laboratory elements and a high degree of precision.
Another way to determine the age of an individual is by analyzing the fusion degree of different bones.
Let us think about the skull of an animal or a person. It is composed of many bones that fit all together in a perfect way. Each bone is closely related to the adjacent ones and is usually involved in the same functions -feeding, breathing, hearing, among others-. The limits between these bones are the <u>suture lines</u>.
In the early post-natal stages, these bones are free. They fit all together, but they are not fused. But with time, they begin a fusion process that completes in adulthood. This fusion process occurs in the sutures.
As a general pattern, groups of bones with the same function get fused at the same time. Each group develops and fuses in a particular chronological sequence and is related to the adaptation to the environment and the biological habits.
The degree of fusion of the suture is a reliable indicator to differentiate age stages.
Answer:
There is no molecular motion in a solid
Explanation:
There are molecules that move freely in liquids and gases but in a solid they don't move. They are usually stuck
Answer:
It is neural tissue that is dominated by the cell bodies of neurons, neuroglia, and unmyelinated axons, and surrounds the narrow central canal.
Explanation:
Grey matter is a part of the central nervous system that is found on the surface of the brain.
It is a neural tissues that has alot of cell bodies of neurons, neuroglia and contain more unmyelinated axons and surronds the narrow central canal.it is distinguished from white matter because it has alot of cell bodies and unmyelinated axons and also it is not as white as white matter with greyish color.
Grey matter form spinal tracts which are the pathways where signals are sent from the brain to all part of the body.
The pitfal that writers should avoid is: <span>Providing too much exposition
Exposition is a comprehensive explanation of a certain story or idea.
Backstory should only include information that lead to the actual content of the story/idea. Providing too much exposition would only fed the reades with many pieces of information that irrelevant to the main content.</span>
