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3 years ago

What difference between slow twitch and fast twitch muscle fibers relates most to their difference in function?

Biology

2 answers:

Tema [17]3 years ago

4 0

"B" is the correct answer

gulaghasi [49]3 years ago

3 0

Answer:

B. Slow twitch fibers contain more mitochondria than fast twitch fibers.

Explanation:

The slow-twitch muscle has a characteristic red color, this is because is rich in myoglobin and mitochondria. Also is dense in capillaries. It uses an oxidation reaction involving oxygen and fat or carbohydrates. This fibers contract with little force but for long periods.

The fast-twitch muscle has great strength but can only hold it for short periods. It is called white muscle because is less dense in mitochondria and myoglobin and work with anaerobic reactions.

The muscles in your body are a mixture of both types.

Taking into consideration all this, A, C, and D are false, and B is true.

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During which stage of the cell cycle does cell division occur? A. mitosis B. cell growth C. interphase D. quiescence

yaroslaw [1]

Answer:

interphase

Explanation:

During interphase, the cell grows and the DNA replicates. After that there's the mitotic phase where the replicated DNA and the contents in the cytoplasm are sperated in a way that the cell divides.

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3 years ago

Structural and functional unit of Kidneys

VikaD [51]

Answer:

The Nephron

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3 years ago

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Which features of Mt. Lico isolate the forest on the mountain from the surrounding area?

katen-ka-za [31]

Answer: See explanation below for answer.

Explanation: Mount Lico is an inselberg, meaning that it is an isolated mountain that rises abruptly from the surrounding plain. At the top of the mountain is a forest that lacks exploration and exploitation by humans.

The mountain is located the Zambezia province in northern Mozambique. It is 1,100 meters or 3,600 feet above sea level, and this is the major reason why it lacks exploitation by humans.

The features of Mount Lico that isolate the forest on top the mountain from the surrounding area are its height and sheer rock walls (which can be up to 700 meters).

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3 years ago

Explain the differences between a monosaccharide, disaccharide, and polysaccharide.

strojnjashka [21]

Answer:

How are monosaccharides disaccharides and polysaccharides different?

Sugars are carbohydrates. ... The main difference between Monosaccharides Disaccharides and Polysaccharides is that monosaccharides are monomers of sugars and disaccharides are composed of two monomers whereas polysaccharides are composed of a large number of monomers.

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3 years ago

Amphibians moved to a terrestrial environment; however, they did not evolve the ability to live their entire lives on land. Expl

Gekata [30.6K]

Answer:

See the answer below

Explanation:

Amphibians are not totally adapted to live on land because the aquatic environment is needed for several life processes such as reproduction, respiration, and sometimes, feeding.

The eggs of amphibians are without any protective shells and will suffer desiccation in the terrestrial environment. Hence, water is needed in order to protect the eggs. In addition, the male amphibians shed their sperm in the water close to the female eggs.

The young ones of amphibians are essentially aquatic and may not survive out of water for a long time because they only breathe gills - the lung is yet to develop or poorly developed at this stage. They have to grow and develop to a certain stage in water before they can start surviving on land.

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3 years ago