A. Calcium would be sent to the sarcoplasmic reticulum, causing contractions to stop. A muscle fiber ceases to contract the instant ATP is depleted. Furthermore, contraction halts when signals from the motor neuron stop, leading to the repolarization of the sarcolemma and T-tubules, thus closing the voltage-gated calcium channels in the sarcoplasmic reticulum. Calcium ions are subsequently pumped back into the sarcoplasmic reticulum, allowing tropomyosin to once again obstruct the binding sites on the actin filaments.
C. Deoarece ele cresc și se dezvoltă, asta înseamnă c:)
The answer you seek is C) bacterial cells capable of producing insulin. I hope this information helps;)
Attitudes are typically more apparent in spoken language than in written text because writing allows us to easily hide our true feelings. Therefore, the correct answer is D.