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rodikova [14]
3 years ago
15

The contraction of skeletal muscles is based on _____. the contraction of skeletal muscles is based on _____. actin and myosin f

ilaments both coiling up to become shorter
Biology
1 answer:
GrogVix [38]3 years ago
7 0
I believe that the contraction of skeletal muscles is based on myosin cross bridges binding to actin the n flexing. Skeletal muscles consists of a repeating structure of myosin and actin fibers. Each myosin thick filament is surrounded by actin filaments, and each thin filament is surrounded by thick filaments. Several of these filaments bundles makes up the functional portion of a muscle cell. 
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Karen gets a full scoop of frizen yogurt in a cone.The scoop is a perfect sphere with the same radius as the cone.She wonders if
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Answer:

In order to fit inside the cone, the volume of frozen yogurt (half sphere in shape) must be smaller than the volume of cone

Explanation:

Image for the question is attached as image

In order to fit inside the cone, the volume of frozen yogurt (half sphere in shape) must be smaller than the volume of cone

The volume of the cone as shown in the image is

\frac{1}{3} \pi r^{2} h

Substituting the values in above equation we get

\frac{1}{3} * (3.14) * (\frac{5}{2})^2*11\\= 71.99

The volume of the frozen yogurt (half sphere in shape)  as shown in the image is

\frac{4}{3} \pi r^3

Substituting the values in above equation we get

\frac{4}{3} * (3.14) * (2.5)^3\\= 65.44

Hence, the volume of frozen yoghurt is smaller than the volume of cone

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Compare DNA and RNA by addressing the number of strands, sugar used, nucleotide bases used, typical location in the cell, and fu
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Answer:

<u>(STRAND)</u>

DNA has two strands arranged in a double helix. RNA consists of a single strand

<u>(SUGAR</u>)

There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.

<u>(NUCLEOTIDE</u>)

A DNA nucleotide contains deoxyribose sugar, whereas an RNA contains the sugar ribose in every nucleotide. The nitrogenous bases in DNA can be adenine, guanine, cytosine, and thymine. Unlike DNA, RNA contains a uracil nitrogenous base instead of thymine.

<u>(LOCATION)</u>

DNA is located in the nucleus of a cell and in the mitochondria. Meanwhile, RNA is found in the cytoplasm, nucleus, and also in the ribosomes

<u>(FUNCTION)</u>

DNA stores genetic information for the cell, whereas RNA codes for amino acids and acts as a messenger between DNA molecules and the ribosomes.

Explanation:

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