Answer: 1) a. decrease 2) b. increase
Explanation: 1) If the rabbit population declined and it is the main source of food for the lynx, the lynx population would decrease because it wouldn’t have enough to eat. 2) Since the lynx is a predator of rabbits, but all the lynx were killed then the rabbit population would increase because they aren’t being eaten.
The answer would be 12 hope this helped
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
No the amount varies for both but there is not an equal amount
Answer:
Five involuntary movements are- Beating of heart, Breathing, digestion, eye re-flexion, salivation.
Explanation:
Involuntary movements can be described as uncontrolled movements of the body parts on which one has no control over.
