Answer:What traits does the kingdom protists fall under
Explanation:
All protists are eukaryotic organisms. ...
Most protists are aquatic, others are found in moist and damp environments.
Most are unicellular, however, there are a few multicellular protists such as the giant kelp.
They may be autotrophic or heterotrophic in nature.
Universal solvent is the answer
c<span>: The interdependence of body systems is essential because all systems work together to maintain homeostasis.</span>
Answer:
The prolonged electrical depolarization of cardiac muscle cells -that occurs during contraction- is due primarily to the persistent influx of calcium ion
Explanation:
The action potential of the heart muscle is longer with respect to skeletal muscle (around 300 milliseconds), and this is due to the activity of calcium (Ca⁺⁺ ) in the intracellular compartment.
The initial depolarization of cardiac muscle fiber depends on the entry of sodium (Na⁺) into the cell. However, for the action potential to occur and be maintained, Ca⁺⁺ must increase its cytoplasmic levels, which depends on:
- The increase in intracellular sodium induces the release of Ca⁺⁺ from the sarcoplasmic reticulum.
- Calcium entry from the extracellular space through the voltage dependent Ca⁺⁺ channels.
- The entry of extracellular Ca⁺⁺ causes the release of more Ca⁺⁺ ions by the sarcoplasmic reticulum, further increasing its intracellular concentration.
This is how the ion that guarantees the duration of the action potential of the cardiac muscle cell is the Ca⁺⁺.
Learn more:
Calcium, sodium and cardiac muscle cells brainly.com/question/4473795
Answer:
Explanation:
relating to the branch of biology that deals with the normal functions of living organisms and their parts.
"physiological research on the causes of violent behaviour"
relating to the way in which a living organism or bodily part functions.
"slow down your body's physiological response to anger by breathing deeply"
