Answer:
A) increasing frequency of action potentials only.
Explanation:
If the muscle fibers begin the contraction with the sarcomere too elongated, the thick and thin filaments would be barely overlapping, forming few crossed bridges. On the contrary, if the sarcomere is too shortened so that the thick filaments reach the z-disks, the myosin is unable to find new fixation sites for cross-bridge formation and the tension decreases rapidly.
But to better understand how the contraction force increases, it should be noted that a single contraction does not represent the maximum force that a muscle fiber can develop. <u>The force generated by the contraction of a muscle fiber is increased, increasing the frequency with which the action potentials of the muscle stimulate said fiber,</u> that is to say that the nervous system controls part of this.
A potential muscular type action lasts between 1 and 3 ms. While muscle contraction can last 100 ms. If the repeated action potentials are separated by prolonged intervals of time, the muscle fiber has time to fully relax between the stimuli. If the action potentials continue to stimulate muscle fiber repeatedly at short intervals (high frequency), the relaxation between contractions decreases until the muscle fiber achieves a state of maximum contraction known as tetanus.
Answer:
Examples of local environmental conditions could include availability of food, light, space, and water. Examples of genetic factors could include large breed cattle and species of grass affecting growth of organisms. The environment in which an organism lives plays an important role in modifying the rate and extent of growth. Environmental factors may be either physical (e.g., temperature, radiant energy, and atmospheric pressure) or chemical. Organisms and the cells of which they are composed are extremely sensitive to temperature changes; as the temperature decreases, the biochemical reactions necessary for life occur more slowly. A lowering of the temperature by 10° C (18° F) slows metabolism at least twofold and often more.
I copied this stuff from a bunch of different biology websites. It doesn't answer your exact question but I would have to say based on what I typed here it would be the environment that affects the growth of an organism more.
<h2>Three limitations of Tri-component Model </h2>
There is usually discrepancy with behaviors and attitudes of the individuals.
- That is the reason there are the attitudes in which effective component, behavioral component and cognitive components.
- The sensitive and emotional reactions or feelings of an individual with one another. Though when an individual behaves with others through actions.
- The third limitation is when a person has a belief about anything.
These above are three limitations of the tri-component model.
Answer:
b. two continental plates converse
Answer:
As energy moves through an ecosystem, it changes form, but no new energy is created. Similarly, as matter cycles within an ecosystem, atoms are rearranged into various molecules, but no new matter is created. So, during all ecosystem processes, energy and matter are conserved
Explanation: