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The terminal cisternae releases calcium ion
The terminal cisternae act as calcium storage sites. The calcium ions stored in the terminal cisternae are essential in muscle contraction. The calcium release unit of muscle consists of terminal cisternae of the sarcoplasmic reticulum and it is adjacent transverse or T- tubule that is the invaginated part of the surface membrane.
Answer:
All—yeast, euglena, and paramecium—exhibit heterotrophic mode of nutrition.
Explanation:
Yeast needs to feed on subtrates (or substances) like sugars, euglena can make its food like plants do and also feeds on other food sources, while paramecium feeds on bacteria often.
It's the urinary one (D)
Explanation:
Immune system combats colds
Nervous system let's you feel things on your nerves
Skeletal is what joins your joints and helps you move
Hope this helped! :]
<u>(could I get brainliest?)</u>
Answer: A. occurs from a high to a low concentration.
Explanation: