The correct answer is that "t<span>roponin holds the tropomyosin in place on the actin".
In excitation-contraction coupling, tropomyosin prevents the interaction between actin and myosin in resting muscles. In the event of excitation, there is release of calcium from the sarcoplasmic reticulum wherein the troponin will bind this calcium and will release tropomyosin and expose myosin enabling it to attach to actin and therefore facilitating muscle contraction.</span>
<span>Anton van Leeuwenhoek learned to grind lenses ( 1668) and develop simple microscopes.
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Leeuwenhoek heated the middle of a small soda glass rod , over a flame. On pulling apart the two ends, the glass rod elongated into thin whiskers .
Heating the end of this whisker resulted in a tiny high quality glass sphere. These glass spheres then became the lens of his microscope, with the smallest sphere providing the greatest magnification.
Leeuwenhoek's designs were very basic. The body of the microscope was a single lens mounted in a tiny hole on a brass plate. The specimen was then mounted on a sharp point that sticks up in front of the lens. It's position and focus could be adjusted by turning the two screws.
The entire instrument was about 3 to 4 inches long and had to be held up close to the eye, requiring good lighting and great patience to use.
Answer:
A biologist is in the process of classifying a newly discovered fungus. The fungus is a decomposer and has saclike structures. To which group does the organism most likely belong? fungi that makes blue cheese ... These statements compare and contrast Ascomycota and Basidiomycota
The fungus is a decomposer and has saclike structures. To which group does the organism most likely belong? ... D.fungi that are autotrophic decomposers. See answers (2). Ask for details; Follow; Report ... a survival advantage because it reduces competition over resources between individual fish of the same species.
hope this helps
1: UV wave.
2: green.
(I hope this helped.)
