This is because a sample is supposed to ideally represent the whole population from which it was taken. Taking samples from different location within the population ensures that they are no bias in the sample. Each part of the population should be well represented in the sample so that the conclusions drawn from the sample represent the properties of the whole population.
Hi!
Magnetic force is a non-contact force.
Protease breaks down protien into amino acids
amylase and other carbohydrase break down starch into sugar
lipase enzymes break down fats and oils into fatty acids and glycerol
i dont know if that answers your question, if not emphasize
The correct answer is "Support the head in the position you find it. Do not try to align it." This is because in a patient with a possible head, neck, or spinal injury, mobilization or moving the the head can potentiate more damage; especially to the cervical vertebra and cervical spine, producing dire consequences such as paralysis and paresthesias. The best thing to do is to support the head and attach a cervical collar, if possible.
Answer:D
Explanation: The pulmonary air sacs of birds only permit a unidirectional flow of air through the lungs. Unidirectional flow means that air is inhale and exhale through one trachea alternatively. This means the bird lungs only receive largely fresh air which has a high oxygen content during inhalation and do not receive fresh during exhalation. While air flow bidirectional in mammals.
