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klio [65]
4 years ago
11

The sarcoplasmic reticulum helps to trigger muscle cell contraction by releasing ________ into the cytoplasm

Biology
1 answer:
dlinn [17]4 years ago
3 0
The sarcoplasmic reticulum helps to trigger muscle cell contraction by releasing Calcium into the cytoplasm
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3 years ago
Of the following choices, what is the approximate LD50 of the least toxic substance? 20 mg/kg, 70 mg/kg, or 130 mg/kg
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  • The dose necessary to cause the death of 50% of a population under test after a predetermined test period is known as the LD50 value for a drug.
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  • Greater toxicity is indicated by a lower LD50. A low LD50 of 500 mg/kg or less implies severe toxicity.
  • Moderate toxicity is indicated by an LD50 of 500 to 1,000 mg/kg. A modest toxicity level of 1,000 to 2,000 mg/kg is indicated.
  • The species is especially vulnerable to the poison if the LD50 is low. The lethal dose (LD50) of a specific poison might change significantly between several animal species.
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learn more about LD50 here: brainly.com/question/24845532

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8 0
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