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.
B. Absolute dating uses the half-life of an element
Absolute dating is a technique that uses radioactive minerals present in rocks and fossils while relative dating compare the sample in terms of age difference. However, absolute dating is more accurate because it uses half-life of an element and provides dates in years.
Answer:
The correct answer is option C) "Remora fish stick to large sharks, receiving a free ride and scraps of food the shark does not eat. The shark is neither helped nor harmed".
Explanation:
Commensalism is defined as a type of interspecies relationship at which one individual gets benefited and the other is neither benefited or harmed. An example of commensalism is the one between remora fish and large sharks. In this case, remora fish gets attached to the large sharks by an organ that acts suction cup. The remora fish gets benefited by receiving transportation, a food source and protection from predators, while the large sharks are neither helped nor harmed.
Let’s simplify step by step
-6x-4x+2
=-6x+-4x+2
Combine Like Terms:
=-6x+-4x+4
=(-6x+-4x)+(2)
=-10x+2=Answer
Factor way answer for factor would be 2(-5x+1)
Hope this helps pls give me BRAINLIEST
Answer:
The wheel and axle is a machine consisting of a wheel attached to a smaller axle so that these two parts rotate together in which a force is transferred from one to the other.
