Answer:
The role of rhinos in the food chain is to act as a primary consumer, since they are herbivores that eat nothing but plants and grasses
Explanation:
I looked it up :D
They would eventually die out because they don’t have the correct adaptations, or they could breed together to make more of the adapted versions. Basically survival of the fittest
Before the orthopaedic surgeon could internally fixate the fractured femur, she performed manual
traction of the femur.
<span>One of the main initial treatments for the fractured femur injury is the application of traction splint. It includes applying distracting force between the lower leg and the relatively “fixed” base of the pelvis, which pulls the femur back into a more anatomical position.</span>
Answer:
According to the sliding-filament model of contraction, the muscle contraction occur due to the myosin heads propel the actin myofilaments toward the center of the sarcomere. This pulls the Z disks closer together, shortening sarcomere and the entire muscle
Explanation:
In the muscle fiber there are two proteins that facilitate the process of contraction, myosin and actin. Myosin is thicker and more abundant than actin, and its interaction is responsible for the process of muscle contraction.
Both molecules, myosin and actin, form bonds -called cross bridges- where the myosin heads produce the mobilization of actin towards the center of the sarcomere. Z discs are associated with actin myofibrils, so they come close, and promote the shortening of the sarcomere.
This process requires the action of calcium ions, which depolarize the muscle cell and consume energy in the form of ATP.
It should be noted that the myosin and actin molecules do not change their length, but their action causes the muscle fibers to shorten during contraction.
Learn more:
Types of muscle contraction brainly.com/question/7117064