Answer: C. A researcher may claim that one variable causes another to occur if test results are significant.
Explanation:
Correlation analysis is not meant to show causation between variables but merely to find out if there is a relationship.
While there is a chance of one variable causing another if they are correlated, it is not always the case as there might be another unforeseen variable.
Even if results are significant, a researcher should never claim that one variable can cause another from correlation analysis.
Answer:
Earth's tilt towards the sun will gradually cause the northern hemisphere to experience summer during today's current winter.
Explanation:
It is expected that over the next 13,000 years, the polar region, particularly the north pole will be tilted gradually towards the sun. At that time, the earth will be in the closest position towards the sun. The tilt would be along the axis and also orbital. Henceforth this both forms of earth's tilt towards the sun, will expose the northern hemisphere to maximum solar radiation, this will cause the region to experience summer during winter's time.
Answer:
2.1 liter.
Explanation:
Homeostasis may be defined as the phenomena of the maintenance of the internal environment of the body irrespective of the change in the external or internal environment.
The water consumption is important for the body as the human's body consists of more than 60% water.
The water consumption can be calculated as follows:
Water consumption = water loss - water produced.
Water loss from exercise = 2000 ml = 2 liter, 300 ml was lost during from metabolism = 0.3 liter.
The water produced = 200 ml = 0.2 liter.
The water consumption = 2 L + 0.3 L - 0.2 L
Total water consumption done by the body = 2.1 liter.
Thus, the answer is 2.1 liter.
Answer:
True
Explanation:
Pacemaker cells, unlike other neurons in the body, can depolarized themselves (and therefore can fire action potentials) without the need of an external innervation of the autonomic nervous system.
Each class of pacemaker cells has its own intrinsic rate.
For example, sinoatrial node rate is 60-100 bpm (the normal heart frequency).
The atrioventricular node is also part of the electrical conduction system of the heart. When the sinoatrial node fails, atrioventricular node takes the lead (40-60 bpm).
Answer: nothing
Explanation:
It is the patients decision or if they are under 18, the parents decision. The health care provider can give suggestions if the patient will allow them but otherwise it is their job to listen to what the patient wants.
