answer B) eact new cell has fewer chromosomes in it's nucleus
Answer:
A) the concentration of calcium ions in the sarcoplasm of a resting muscle
Explanation:
Sarcoplasmic reticulum is a system of the membranous sac that is present around each myofibril and is filled with calcium ions. When muscles are in the resting stage, calcium ions are stored in the sarcoplasmic reticulum.
As the muscle action potential triggers change in voltage-gated calcium ion channels of the sarcoplasmic reticulum, the channels are opened to release the calcium ions in the sarcoplasm. Increased calcium ion levels in sarcoplasm make the muscle fibers to contract.
Removal of acetylcholine from the synaptic cleft ends the production of muscle action potential and calcium ions are moved back from the sarcoplasmic reticulum.
Hence, lower levels of calcium ions are maintained in sarcoplasm when the muscles are in the resting stage.
When assessing the heart rate of a 6-month-old infant, you should palpate the brachial or femoral pulse
Respuesta:
Por lo general, las células son redondas, alargadas o esféricas. También hay algunas celdas que son largas y puntiagudas en ambos extremos. Estas células presentan forma de huso. En algunos casos, las celdas son muy largas.
In which organelle, does cellular aerobic respiration take place?
ribosome
lysosome
chloroplast
<u>mitochondria</u>
<em>Hope</em><em> this</em><em> helps</em>
