The cardiac sphincter which is
found at the upper part of the stomach guards the entry of food into the
stomach. Cardiac sphincter performs essential roles in digestion as it keeps
stomach acids and other stomach contents from pushing up and into the
esophagus.
Answer:
Primary
Explanation: Pioneer species (bare rock,lichens, small annual plants, grasses), intermediate species(grasses shrubs and shade intolerent trees such as pines), climax community (Oak and hickorey)
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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Answer:
zebras,spingbok, rabbit
Explanation:
the hunters of this prey would be :hyenas ,lions, cheetahs
Answer:
what sir? it just has random letters