4. ¿Qué tanto conoces sobre los ecosistemas chilenos?
Answer:
A
Explanation:
This overcomes the size difference problem because all kinds of organisms at a trophic level are weighed.
Answer:
A. Voltage-gated Ca² channels open, triggering the release of neurotransmitters.
Explanation:
For taste mechanisms to function properly, it is necessary the activation of taste receptors.
Through the activation of taste receptors, transduction cascades occur, involving ion channels that are located in the apical or lateral membranes. There occurs a subsequent release of chemical neurotransmitters that send signals to the control centers.
Salty and sweet flavors produce the membrane depolarization that results in Ca+ ions´ entrance to the cell. Ca+ initiates the release of neurotransmitters. Afferent gustative neurons receive the message and send it to the control center, the encephalon. After that, gustative cells go back to the initial state, repolarizing.
Answer: d. all of the above.
A habitat change is a natural phenomena in an ecosystem where a species move to other place due natural or man-made disturbances occurring in an ecosystem. These disturbances can be because of non-availability of resources, natural calamity like drought, flood, forest fires, mudslide etc., introduction of invasive species or predation. An introduction of invasive species will affect the prey population, the prey population will find the habitat not suitable for survival therefore, they will change the habitat. Wildfires and mudslide are natural calamities which will induce habitat change by the species.
The licensed practical nurse intervention is the constant monitoring on the oxygen level of the patient and adjusting the oxygen flow rate based on the desired oxygen level for
patient with COPD.
Therefore, teaching patients
about home oxygen use is not very appropriate because there is a tendency of
malpractice on high amount or continuous supply of oxygen on the patient. When the
oxygen level of the patient is increased more than the body’s requirement, it
will result to hypoxia, this case is critical for it is very difficult to
reduce the level of oxygen in the body.
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