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Vadim26 [7]
3 years ago
10

3. Write a step-by-step description of the “sliding filament theory.” Think about the requirements for contraction. What stimuli

, sources of energy and other ions are needed to shorten a muscle?
Biology
1 answer:
Zielflug [23.3K]3 years ago
6 0
The sliding filament theory of muscle contraction was developed to fit the differences observed in the named bands on the sarcomere at different degrees of muscle contraction and relaxation. The mechanism of contraction is the binding of myosin to actin, forming cross-bridges that generate filament movement.
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The graph that best shows the general relationship between the temperature of a gas and the speed of the molecules in that gas is B.

<h3>What is kinetic energy?</h3>

Kinetic energy is the energy that an object or particle has as a result of its motion. When work transferring energy, is done on an object by applying a net force, the object accelerates and goes under kinetic energy.

The missing graphs are attached as image.

The average kinetic energy of gas molecules is

K=\frac{3}{2} k_{B}T

K∝T

So as per above equation, K-T graph is a straight line having a finite slope and passing through the origin.

Thus, option B is correct.

For more details regarding kinetic energy, visit:

brainly.com/question/12669551

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Your class went out to Government Canyon State Park, and each group had to measure the size and density of organisms in a 1m2 ar
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Answer:

  • A signifies quadrant sampling.

  • B signifies density.

  • C signifies percentage coverage as it is the average estimate of the area the species covers in a quadrant.

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  • E signifies average density. As density = number of plants per square meter.

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4 0
3 years ago
When a water-soluble nutrient molecule has been absorbed and has crossed into the cell of a villus, it enters the bloodstream an
lilavasa [31]

The given blank can be filled with liver.  

The huge surface area of the small intestine helps in absorption of nutrients. The water-soluble nutrients and small fats enter the bloodstream directly. The inner surface of the small intestine comprises hundreds of folds of compositions known as villi. Within the villi, there are numerous microscopic projections known as microvilli.  

The microvilli substantially enhance the surface area of the small intestine that upsurges the rate of absorption of nutrients. Upon entering the bloodstream the water-soluble nutrients are directed towards the liver prior to being transported to the cells.  


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Explanation:

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Answer;

-Arousal, metabolism, growth and sex

The endocrine system is directly involved with arousal, metabolism, growth and sex.

Explanation;

The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things.

-These hormones regulate the body's growth, metabolism (the physical and chemical processes of the body), and sexual development and function. The hormones are released into the bloodstream and may affect one or several organs throughout the body.

-Hormones are chemical messengers created by the body, whose role is to transfer information from one set of cells to another to coordinate the functions of different parts of the body.

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