If the Star Polaris Has an Altitude of 35 $\degree$ , Then We Know That
A) Our Longitude Is +55

question 49

Multiple Choice

If the star Polaris has an altitude of 35 $\degree$ , then we know that

• A) our longitude is +55\(\degree\).
• B) our latitude is +55\(\degree\).
• C) our longitude is -35\(\degree\).
• D) our longitude is+35\(\degree\).
• E) our latitude is +35\(\degree\).

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Definitions:

Z Disk

Delicate, membranelike structure found at each end of a sarcomere to which actin myofilaments attach.

T Tubule

T Tubules, or transverse tubules, are extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, playing a crucial role in muscle contraction.

Sliding Filament Model

A theory describing the mechanism of muscle contraction, where actin and myosin filaments slide past each other to shorten the muscle fiber length.

Sarcomere

The basic unit of a muscle's cross-striated myofibril, responsible for the muscle's contractile properties.