Answer:
The geosphere contains the elements that make up the Earth's surface.
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Biotic natural resources also include fossil fuels such as coal and petroleum which are formed from organic matter that has decayed. Abiotic: these resources come from non-living and non-organic material. Examples of these resources include land, fresh water, air, and heavy metals (gold, iron, copper, silver, etc.).
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❖ The correct answer is A. They can get food and move.
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The sarcomere will have uncontrolled muscle contractions.
Troponin blocks myosin-binding sites in the tropomyosin of the actin. If the troponin is damages, the myosin-binding sites will be exposed and myosin heads (of the myosin fiber) will be able to form cross-bridges with the actin even when not required.
Explanation:
This means the sarcomere will contract even when not required or expected hence resulting in symptoms like muscle spasms. Usually, troponin molecules exposes the myosin-binding sites on the tropomyosin upon binding of Ca²⁺ ions. These Ca²⁺ are usually released by the sarcoplasmic reticulum upon impulse from the inverted nerve.
Learn More:
For more on troponin and tropomyosin check out;
brainly.com/question/13537142
brainly.com/question/13668182
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